98971 + Interview Questions in Primary School in Math

1.	In a class test, (+5) marks are given for every correct answer and (-2) for every incorrect answer. Jay answered all the questions and scored (-12) marks though he got 4 correct answers. How many incorrect answers had he attempted?
Answer» ANSWER: he ATTEMPTED 6 incorrect ANSWERS Step-by-step EXPLANATION:

1.

In a class test, (+5) marks are given for every correct answer and (-2) for every incorrect answer. Jay answered all the questions and scored (-12) marks though he got 4 correct answers. How many incorrect answers had he attempted?

Answer»

ANSWER:

he ATTEMPTED 6 incorrect ANSWERS

Step-by-step EXPLANATION:

Discussion

2.	One of the two digits of a two digit number is three times the other digit. If youinterchange the digits of this two-digit number and add the resulting number to theonginal number, you get 88. What is the original number?five.please please tell me the answer
Answer» ANSWER: Step-by-step explanation: Let ten's digit of a number be x Unit digit =3X Number = 10x+3x =10x+3x =13x Reversing the digit =31x ATQ New number + ORIGINAL number =88 =10x + 3x +31x =88 =44x = 88 x=88/44=2 Hence,2digit number =31x=312=62 Please mark me as brain list

2.

One of the two digits of a two digit number is three times the other digit. If youinterchange the digits of this two-digit number and add the resulting number to theonginal number, you get 88. What is the original number?five.please please tell me the answer

Answer»

ANSWER:

Step-by-step explanation:

Let ten's digit of a number be x

Unit digit =3X

Number = 10*x+3x

=10x+3x

=13x

Reversing the digit =31x

ATQ

New number + ORIGINAL number =88

=10x + 3x +31x =88

=44x = 88

x=88/44=2

Hence,2digit number =31x=31*2=62

Please mark me as brain list

Discussion

3.	PLEASE ANSWER :3 god will bless u
Answer» ANSWER: it is (A) Step-by-step explanation: no. 10 STANDS for the unknown number on the tens PLACE. 7 stands for the sum. it MEANS that when we do 7-h we get the face value of the no. on the tens place. and when we MULTIPLY it by ten we get the place value of the no. on tens place. and after adding h we get the no.

3.

PLEASE ANSWER :3 god will bless u

Answer»

ANSWER:

it is (A)

Step-by-step explanation:

no. 10 STANDS for the unknown number on the tens PLACE.

7 stands for the sum.

it MEANS that when we do 7-h we get the face value of the no. on the tens place.

and when we MULTIPLY it by ten we get the place value of the no. on tens place. and after adding h we get the no.

Discussion

4.	C) Theue Q06_num boas having more than twofactors like 4,6,8,9,10 and so on. Thesenumbes e composite numbersnambees having more than two factors are calledComposite numbers. Is is a composite numbex ?Why? What about 18225 ? without actuallyChecking the factor of a numbello we canfind paine numbers from Holoo with aneasion Method. This method was given by a
Answer» whole numbers cannot be expressed as the product of two whole numbers except 1 and the number itself are called primes composite can be expressed as the product of two primes 18225 is composite because it is ATLEAST DIVISIBLE by 5 and 3 ... please rate 5 star and SAY a thanks (this REALLY makes me happy) ... if possible *mark as the brainliest*

4.

C) Theue Q06_num boas having more than twofactors like 4,6,8,9,10 and so on. Thesenumbes e composite numbersnambees having more than two factors are calledComposite numbers. Is is a composite numbex ?Why? What about 18225 ? without actuallyChecking the factor of a numbello we canfind paine numbers from Holoo with aneasion Method. This method was given by a

Answer»

whole numbers cannot be expressed as the product of two whole numbers except 1 and the number itself are called primes

composite can be expressed as the product of two primes

18225 is composite because it is ATLEAST DIVISIBLE by 5 and 3 ...

please rate 5 star and SAY a thanks (this REALLY makes me happy) ... if possible mark as the brainliest

Discussion

5.	I just want to know what an interval is. (Algebra I Math)
Answer» ANSWER: INTERVAL is a TYPE of BREAK

5.

I just want to know what an interval is. (Algebra I Math)

Answer»

ANSWER:

INTERVAL is a TYPE of BREAK

Discussion

6.	Please answer 3,5,6 factorise it
Answer» Answer: Step-by-step explanation: (1-3a)(1-a) MIDDLE factorising ans of the first QUESTION (2a+3)(3a-5) ans of the second question a(8a+1)(3a+5) ans of the third question if you like this answer please MARK it as a brainliest ans

6.

Please answer 3,5,6 factorise it

Answer»

Answer:

Step-by-step explanation:

(1-3a)(1-a) MIDDLE factorising ans of the first QUESTION

(2a+3)(3a-5) ans of the second question

a(8a+1)(3a+5) ans of the third question

if you like this answer please MARK it as a brainliest ans

Discussion

7.	Convert the following decimal numbers into their binary equivalants: 8, 26, 47, 79, 84.
Answer» Answer there are no DECIMAL no.s

7.

Convert the following decimal numbers into their binary equivalants: 8, 26, 47, 79, 84.

Answer»

Answer

there are no DECIMAL no.s

Discussion

8.	Visualise 4.3875 on the number line using succesive magnification
Answer» Answer: here's UR answer I HOPE it helps U PLZ MARK me as brainalist......

8.

Visualise 4.3875 on the number line using succesive magnification

Answer»

Answer:

here's UR answer

I HOPE it helps U

PLZ MARK me as brainalist......

Discussion

9.	Solve these questions by step by step please
Answer» $\text{[math]}$ PLESE LIKES KRNA....

9.

Solve these questions by step by step please

Answer»

$\text{[math]}$

PLESE LIKES KRNA....

Discussion

10.	there are 27 cartoon of juice packet in a shop each carton has 217 packet find the total number of juice packet ?
Answer» ANSWER: the answer is 5859 simply 27×217

10.

there are 27 cartoon of juice packet in a shop each carton has 217 packet find the total number of juice packet ?

Answer»

ANSWER:

the answer is 5859

simply 27×217

Discussion

11.	Can any one represent rational numbers given in above question I will mark as brainlist...............
Answer» ANSWER: I don't now the answer BRO

11.

Can any one represent rational numbers given in above question I will mark as brainlist...............

Answer»

ANSWER:

I don't now the answer BRO

Discussion

12.	The length of a rectangle is (y + 5). The width of the rectangle is (y). Write the expressionrepresents the perimeter of the rectangle?
Answer» Answer: Step-by-step explanation: PERIMETER of a rectangle= 2(length x BREADTH) As per question: Length=(y+5) Breadth=y Substituting values: 2{(y+5)XY}= perimeter 2(y^2+5y) 2y^2+10y Therefore the equation for perimeter of rectangle of specified dimensions is 2y^2+10y Mark as BRAINLIEST if you find it helpful.

12.

The length of a rectangle is (y + 5). The width of the rectangle is (y). Write the expressionrepresents the perimeter of the rectangle?

Answer»

Answer:

Step-by-step explanation:

PERIMETER of a rectangle=

2(length x BREADTH)

As per question:

Length=(y+5)

Breadth=y

Substituting values:

2{(y+5)XY}= perimeter

2(y^2+5y)

2y^2+10y

Therefore the equation for perimeter of rectangle of specified dimensions is 2y^2+10y

Mark as BRAINLIEST if you find it helpful.

Discussion

13.	The product of two numbers is 141705. If one of the number is 705 find the other?
Answer» the FIRST NUMBER is 705 LET the other number be 'X' 705×X= 141705 X= 141705/705 X = 201

13.

The product of two numbers is 141705. If one of the number is 705 find the other?

Answer»

the FIRST NUMBER is 705

LET the other number be 'X'

705×X= 141705

X= 141705/705

X = 201

Discussion

14.	Express 35 mm in cm,m and km
Answer» Step-by-step explanation: 35mm=3.5cm=3.5×10^-2m=3.5×10^-3km

14.

Express 35 mm in cm,m and km

Answer»

Step-by-step explanation:

35mm=3.5cm=3.5×10^-2m=3.5×10^-3km

Discussion

15.	Arrange the following number in ascending order. 732550,713550 ,713505,731505
Answer» 713505,713550,731505,732550 Hope it HELPS you PLEASE MARK as BRAINLIST FOLLOW me

15.

Arrange the following number in ascending order. 732550,713550 ,713505,731505

Answer»

713505,713550,731505,732550

Hope it HELPS you

PLEASE MARK as BRAINLIST

FOLLOW me

Discussion

16.	Please find the square root of this
Answer» ANSWER: MRK AS BRAINLIEST AND LIKES.

16.

Please find the square root of this

Answer»

ANSWER:

MRK AS BRAINLIEST AND LIKES.

Discussion

17.	daveshi has a total of rs 590 as currency notes in denomination of rs 50,rs20 and rs 10.the ratio of the number of rs50 notes and rs20 notes is 3:5.if she has a total of 25 notes,how many notes of each denominations she has?
Answer» ANSWER: I don't KNOW the answer

17.

daveshi has a total of rs 590 as currency notes in denomination of rs 50,rs20 and rs 10.the ratio of the number of rs50 notes and rs20 notes is 3:5.if she has a total of 25 notes,how many notes of each denominations she has?

Answer»

ANSWER:

I don't KNOW the answer

Discussion

18.	What is the answer for this question?(-12)×(-11)×(10)
Answer» ANSWER: -1320 is the answer for your QUESTION

18.

What is the answer for this question?(-12)×(-11)×(10)

Answer»

ANSWER:

-1320 is the answer for your QUESTION

Discussion

19.	Q7:LCM of 6, 18 and 54 isOa) 18Ob) 54Oc) 36Od) 108
Answer» Answer: 54 is the L.C.M of 6 8 54.…..

19.

Q7:LCM of 6, 18 and 54 isOa) 18Ob) 54Oc) 36Od) 108

Answer»

Answer:

54 is the L.C.M of 6 8 54.…..

Discussion

20.	Convert 1m³to cm³in physics
Answer» Answer: 1000000 CUBIC centimeter Step-by-step EXPLANATION:

20.

Convert 1m³to cm³in physics

Answer»

Answer:

1000000 CUBIC centimeter

Step-by-step EXPLANATION:

Discussion

21.	Arrange the following numbers in ascending order. 396752,3696275 ,396275, 373568
Answer» 373568, 396275, 396752, 3696275 hope it will HELP you and ANSWER is RIGHT

21.

Arrange the following numbers in ascending order. 396752,3696275 ,396275, 373568

Answer»

373568, 396275, 396752, 3696275

hope it will HELP you and ANSWER is RIGHT

Discussion

22.	Please answer 3,5,6
Answer» ANSWER: $3)(1 - 3a)(1 - a) \\ 5)(2a + 3)(3a - 5) \\ 6)a(8a - 1)(3a + 5) \\$ Step-by-step EXPLANATION: PLEASE MARK as a RESULT

22.

Please answer 3,5,6

Answer»

ANSWER:

$3)(1 - 3a)(1 - a) \\ 5)(2a + 3)(3a - 5) \\ 6)a(8a - 1)(3a + 5) \\$

Step-by-step EXPLANATION:

PLEASE MARK as a RESULT

Discussion

23.	Q6:LCM of 8, 16 and 64 is.O a) 64Ob) 48Oc) 32Od) 128
Answer» ANSWER: the answer is 64 that is QUESTION opsition a

23.

Q6:LCM of 8, 16 and 64 is.O a) 64Ob) 48Oc) 32Od) 128

Answer»

ANSWER:

the answer is 64 that is QUESTION opsition a

Discussion

24.	AbArrancethe followingnumbers is ascending75376 و727374کا 73
Answer» Answer: 72,73,73,74,75,376 Step-by-step EXPLANATION:

24.

AbArrancethe followingnumbers is ascending75376 و727374کا 73

Answer»

Answer:

72,73,73,74,75,376

Step-by-step EXPLANATION:

Discussion

25.	Correct answer will be brain list
Answer» ANSWER: the other SIDE MEANS the breadth will be 383.5 m requesting to make it as a BRAINLIEST ans Step-by-step explanation:

25.

Correct answer will be brain list

Answer»

ANSWER:

the other SIDE MEANS the breadth will be 383.5 m requesting to make it as a BRAINLIEST ans

Step-by-step explanation:

Discussion

26.	Simplify:2.89 + 1.44(1) 2.89 - 1.44(ii) V3.61 -2.25V3.61 +2.25
Answer» Step-by-step EXPLANATION: WRITE you QUESTION PROPERLY

26.

Simplify:2.89 + 1.44(1) 2.89 - 1.44(ii) V3.61 -2.25V3.61 +2.25

Answer»

Step-by-step EXPLANATION:

WRITE you QUESTION PROPERLY

Discussion

27.	Write the principle of mathematical induction.
Answer» $\huge\red{\mid{\underline{\overline{\textbf{Answer}}}\mid}}$ $\bold{Principle\:of\:Mathematical\:<klux>INDUCTION</klux>}$ ACCORDING to the principle of mathematical induction, to prove a statement that is asserted about every natural number n, there are Three THINGS to be proved : Step 1 - putting n=1 and check given statement is true or false. Step 2 - Consider that statement is true for n = k. Step 3 - Prove that the given statement is true for n = (k+1).

27.

Write the principle of mathematical induction.

Answer»

$\huge\red{\mid{\underline{\overline{\textbf{Answer}}}\mid}}$

$\bold{Principle\:of\:Mathematical\:<klux>INDUCTION</klux>}$

ACCORDING to the principle of mathematical induction, to prove a statement that is asserted about every natural number n, there are Three THINGS to be proved :

Step 1 - putting n=1 and check given statement is true or false.
Step 2 - Consider that statement is true for n = k.
Step 3 - Prove that the given statement is true for n = (k+1).

Discussion

28.	Q4:LCM of 10, 12 and 20 by prime factors is
Answer» Answer: 2 Step-by-step explanation: 10 = 2 X 5 12 = 2 x 2 x 3 20= 2 x 2 x 5 As you can SEE, only 2 is common in all

28.

Q4:LCM of 10, 12 and 20 by prime factors is

Answer»

Answer:

2

Step-by-step explanation:

10 = 2 X 5

12 = 2 x 2 x 3

20= 2 x 2 x 5

As you can SEE, only 2 is common in all

Discussion

29.	6 Arrange the following numbers is ascendingاو زيارتي376 (752,564,275یا 3735 و 376225
Answer» Step-by-step explanation: 275,376,564,752 this is the ASSENDING ORDER FOLLOWED by the GIVEN NUMBERS

29.

6 Arrange the following numbers is ascendingاو زيارتي376 (752,564,275یا 3735 و 376225

Answer»

Step-by-step explanation:

275,376,564,752

this is the ASSENDING ORDER FOLLOWED by the GIVEN NUMBERS

Discussion

30.	What is the remainder of 357819÷49=?
Answer» Step-by-step EXPLANATION: HOPE it will HELP you and ANSWER is RIGHT

30.

What is the remainder of 357819÷49=?

Answer»

Step-by-step EXPLANATION:

HOPE it will HELP you and ANSWER is RIGHT

Discussion

31.	Write any eight consecutive integers whose sum is 4?
Answer» EXPLANATION: x-3+x-2+x-1+x+x+1+x+2+x+3+x+4=4 8x=0 X=0 therefore, CONSECUTIVE NUMBERS are -3,-2,-1,0,1,2,3,4.

31.

Write any eight consecutive integers whose sum is 4?

Answer»

EXPLANATION:

x-3+x-2+x-1+x+x+1+x+2+x+3+x+4=4

8x=0

X=0

therefore, CONSECUTIVE NUMBERS are -3,-2,-1,0,1,2,3,4.

Discussion

32.	Factorise a(x-y) -b(y-x)
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

33.	Q3LCM of 6, 9 and 15 by prime factors isO a) 30Ob) 45Oc) 60Od) 90
Answer» ANSWER: The answer of the QUESTION is (d) 90

33.

Q3LCM of 6, 9 and 15 by prime factors isO a) 30Ob) 45Oc) 60Od) 90

Answer»

ANSWER:

The answer of the QUESTION is (d) 90

Discussion

34.	Express 192 as the product of its prime factors
Answer» Answer: $\text{[math]}$ ${\huge{\overbrace{\underbrace{\purple{Hello }}}}}$ This is a SIMPLE question TESTING the knowledge of prime numbers. The prime factors of 192 are as FOLLOWS : 192 = 2 × 2 × 2 × 2 × 2 × 2 × 3 These are the prime factors of 192 As they are above, they are in ascending order.

34.

Express 192 as the product of its prime factors

Answer»

Answer:

$\text{[math]}$

${\huge{\overbrace{\underbrace{\purple{Hello }}}}}$

This is a SIMPLE question TESTING the knowledge of prime numbers.

The prime factors of 192 are as FOLLOWS :

192 = 2 × 2 × 2 × 2 × 2 × 2 × 3

These are the prime factors of 192

As they are above, they are in ascending order.

Discussion

35.	Solve 10-5(1+x)÷3+3x+1÷5=0
Answer» Answer: Step-by-step explanation: 10- 5(1 + x)÷3+3x+1÷5⇒0 5(1 + x)÷3+3x+1÷5⇒0 5 + 5X ÷3+3x+1÷5⇒0 8x+1⇒0×3 8x+1⇒0 8x⇒0 - 1 x⇒- 1by 8 i think this helps you

35.

Solve 10-5(1+x)÷3+3x+1÷5=0

Answer»

Answer:

Step-by-step explanation:

10- 5(1 + x)÷3+3x+1÷5⇒0

5(1 + x)÷3+3x+1÷5⇒0

5 + 5X ÷3+3x+1÷5⇒0

8x+1⇒0×3

8x+1⇒0

8x⇒0 - 1

x⇒- 1by 8

i think this helps you

Discussion

36.	Q. evaluate 1. (-7 ) +(-18) 2. 56+90 3. (-120 )+(-74) 4.(-22) + (-14 ) 5. (-10) + (- 23) 6. 34+89 +60 7. (-75) + (-33) +(-13)
Answer» RULE: postive + POSITIVE= adding the numbers with the sign of (+) or none negative + negative= adding the numbers with the sign of (-) negative + positive= SUBTRACT the numbers then copy the sign of the bigger number. 1. -25 2. 146 3. -194 4. -36 5. -33 6. 183 7. -121

36.

Q. evaluate 1. (-7 ) +(-18) 2. 56+90 3. (-120 )+(-74) 4.(-22) + (-14 ) 5. (-10) + (- 23) 6. 34+89 +60 7. (-75) + (-33) +(-13)

Answer»

RULE:

postive + POSITIVE= adding the numbers with the sign of (+) or none

negative + negative= adding the numbers with the sign of (-)

negative + positive= SUBTRACT the numbers then copy the sign of the bigger number.

1. -25

2. 146

3. -194

4. -36

5. -33

6. 183

7. -121

Discussion

37.	Odd one out 5061,4025,6005,6023
Answer» 5061 is the ANSWER in all of the NUMBERS because the other THREE are MULTIPLYING from 11

Discussion

38.	А) 312 р. 36. 7. В2175, 37 с.
Answer» Answer: what to do with the options and information you PROVIDED . I HOPE you will upload QUESTION PROPERLY

38.

А) 312 р. 36. 7. В2175, 37 с.

Answer»

Answer:

what to do with the options and information you PROVIDED . I HOPE you will upload QUESTION PROPERLY

Discussion

39.	Q2:LCM of 24, 35 and 48 by p ime factors isO a) 840Ob) 360Oc) 1680Od) 240
Answer» Answer: 1680 is the answer Step-by-step EXPLANATION: you can CHECK it by DIVIDING it by all the ANSWERS

39.

Q2:LCM of 24, 35 and 48 by p ime factors isO a) 840Ob) 360Oc) 1680Od) 240

Answer»

Answer:

1680 is the answer

Step-by-step EXPLANATION:

you can CHECK it by DIVIDING it by all the ANSWERS

Discussion

40.	How to solve this problem
Answer» Answer: HELLO here's your answer: 62 if you have any DOUBT than comment me. hope u be HAPPY with this answer. : ) : ) . . . . . . . . . . . . . .

40.

How to solve this problem

Answer»

Answer:

HELLO here's your answer: 62

if you have any DOUBT than comment me.

hope u be HAPPY with this answer.

: ) : ) . . . . . . . . . . . . . .

Discussion

41.	Rationalise (under root 3+under root 2)upon(under root 3-under root 2)+(under root3-under root 2)upon(under root3+under root 2) and the answer comes 10
Answer» ANSWER: djsjsjdifbbcbdnsjakos ISJ

41.

Rationalise (under root 3+under root 2)upon(under root 3-under root 2)+(under root3-under root 2)upon(under root3+under root 2) and the answer comes 10

Answer»

ANSWER:

djsjsjdifbbcbdnsjakos ISJ

Discussion

42.	a Jeep travels with a speed of 80km/hr and reaches it's destination in 3hour . what is the distance
Answer» SPEED is 80km/h So , DISTANCE will be 80X3=240

42.

a Jeep travels with a speed of 80km/hr and reaches it's destination in 3hour . what is the distance

Answer»

SPEED is 80km/h

So , DISTANCE will be 80X3=240

Discussion

43.	Show how5 can be represented on the number line.c.
Answer» HOPE it HELP you mark as BRILLIANT

43.

Show how5 can be represented on the number line.c.

Answer»

HOPE it HELP you

mark as BRILLIANT

Discussion

44.	P(x)=2x^3+7x^2-24x-45,g(x)=x-1 using factor theorem ,show that g(x)is a factor of p(x)
Answer» ANSWER: PLEASE MARK it as BRAINLIEST ❤️❤️

44.

P(x)=2x^3+7x^2-24x-45,g(x)=x-1 using factor theorem ,show that g(x)is a factor of p(x)

Answer»

ANSWER:

PLEASE MARK it as BRAINLIEST ❤️❤️

Discussion

45.	Divide the sum of -13/5 and 12/7 by the product of -31/7 and 1/2
Answer» SUM of -13/5 and 12/7 $\frac{ - 13}{5} + \frac{12}{7} \\ = \frac{ - 91 + 60}{35} \\ = \frac{ - 31}{35}$ Product of -31/7 and 1/2 $\frac{ - 31}{7} \times \frac{1}{2} = \frac{ - 31}{14}$ Divide-31/35 by -31/14 $\frac{ - 31}{35} \div \frac{ - 31}{14} \\ = \frac{ - 31}{35} \times \frac{14}{ - 31} \\ = \frac{14}{35}$

45.

Divide the sum of -13/5 and 12/7 by the product of -31/7 and 1/2

Answer»

SUM of -13/5 and 12/7

$\frac{ - 13}{5} + \frac{12}{7} \\ = \frac{ - 91 + 60}{35} \\ = \frac{ - 31}{35}$

Product of -31/7 and 1/2

$\frac{ - 31}{7} \times \frac{1}{2} = \frac{ - 31}{14}$

Divide-31/35 by -31/14

$\frac{ - 31}{35} \div \frac{ - 31}{14} \\ = \frac{ - 31}{35} \times \frac{14}{ - 31} \\ = \frac{14}{35}$

Discussion

46.	A father is 6 times older than his son. After 4 years, he will be only 4 times as old as his son. What are their present ages?
Answer» GIVEN : FATHER is 6 times older than his son. After 4 YEARS, father's age will be 4 times as old as son's age. To Find : Present age of Father Present age of Son SOLUTION : Let the present age of father be x years. Let the present age of son be y years. Case 1 : The age of Father, x is 6 times the age of son, y. Equation : $\longrightarrow$ $\sf{x=6y}$ $\sf{x-6y=0\:\:\:\:(1)}$ Case 2 : After 4 years, father's age, x will be 4 times the age of son. Age of father after 4 year, (x+4) years. Age of son after 4 year, (y+4) years. Equation : $\longrightarrow$ $\sf{(x+4)=4(y+4)}$ $\longrightarrow$ $\sf{x+4=4y+16}$ $\longrightarrow$ $\sf{x-4y=16-4}$ $\longrightarrow$ $\sf{x-4y=12\:\:\:(2)}$ Now, SUBTRACT equation (1) from (2), $\longrightarrow$ $\sf{x-6y-(x-4y) =0-12}$ $\longrightarrow$ $\sf{x-6y+x+4y=-12}$ $\longrightarrow$ $\sf{-6y+4y=-12}$ $\longrightarrow$ $\sf{-2y=-12}$ $\longrightarrow$ $\sf{y=\dfrac{-12}{-2}}$ $\longrightarrow$ $\sf{y=\dfrac{12}{2}}$ $\longrightarrow$ $\sf{y=6}$ Substitute, y = 6 in equation (1), $\longrightarrow$ $\sf{x-6y=0}$ $\longrightarrow$ $\sf{x-6(6)=0}$ $\longrightarrow$ $\sf{x-36=0}$ $\longrightarrow$ $\sf{x=36}$ $\large{\boxed{\bold{\purple{Present\:age\:of\:father\:=\:x\:=\:36\:years}}}}$ $\large{\boxed{\bold{\purple{Present\:age\:of\:son\:=\:y\:=\:6\:years}}}}$

46.

A father is 6 times older than his son. After 4 years, he will be only 4 times as old as his son. What are their present ages?

Answer»

GIVEN :

FATHER is 6 times older than his son.
After 4 YEARS, father's age will be 4 times as old as son's age.

To Find :

Present age of Father
Present age of Son

SOLUTION :

Let the present age of father be x years.

Let the present age of son be y years.

Case 1 :

The age of Father, x is 6 times the age of son, y.

Equation :

$\longrightarrow$ $\sf{x=6y}$

$\sf{x-6y=0\:\:\:\:(1)}$

Case 2 :

After 4 years, father's age, x will be 4 times the age of son.

Age of father after 4 year, (x+4) years.

Age of son after 4 year, (y+4) years.

Equation :

$\longrightarrow$ $\sf{(x+4)=4(y+4)}$

$\longrightarrow$ $\sf{x+4=4y+16}$

$\longrightarrow$ $\sf{x-4y=16-4}$

$\longrightarrow$ $\sf{x-4y=12\:\:\:(2)}$

Now, SUBTRACT equation (1) from (2),

$\longrightarrow$ $\sf{x-6y-(x-4y) =0-12}$

$\longrightarrow$ $\sf{x-6y+x+4y=-12}$

$\longrightarrow$ $\sf{-6y+4y=-12}$

$\longrightarrow$ $\sf{-2y=-12}$

$\longrightarrow$ $\sf{y=\dfrac{-12}{-2}}$

$\longrightarrow$ $\sf{y=\dfrac{12}{2}}$

$\longrightarrow$ $\sf{y=6}$

Substitute, y = 6 in equation (1),

$\longrightarrow$ $\sf{x-6y=0}$

$\longrightarrow$ $\sf{x-6(6)=0}$

$\longrightarrow$ $\sf{x-36=0}$

$\longrightarrow$ $\sf{x=36}$

$\large{\boxed{\bold{\purple{Present\:age\:of\:father\:=\:x\:=\:36\:years}}}}$

$\large{\boxed{\bold{\purple{Present\:age\:of\:son\:=\:y\:=\:6\:years}}}}$

Discussion

47.	Find (x+y) - (x-y) if x = 5/7 , y = -3/9
Answer» Step-by-step EXPLANATION: this is your ANSWER i HOPE this HELP you

47.

Find (x+y) - (x-y) if x = 5/7 , y = -3/9

Answer»

Step-by-step EXPLANATION:

this is your ANSWER

i HOPE this HELP you

Discussion

48.	7 * 218-5382eat 1 by 2 - 35 by 8
Answer» ANSWER: PLEASE MARK me as the BRAINLIEST

48.

7 * 218-5382eat 1 by 2 - 35 by 8

Answer»

ANSWER:

PLEASE MARK me as the BRAINLIEST

Discussion

49.	५. खालील अपूर्ण कथा पूर्ण करा.फार फार वर्षापूर्वीची गोष्ट आहे ही.एक व्यापारी होता. एके दिवशी तो गावाला निघाला बोट त्यालाएक चोर भेटला. चोराने व्यापाऱ्याशी मैत्री केली,दोघेही रात्री एका धर्मशाकेत उतरले.सगो गाट झोपल्यावर लोउठला. त्याने व्यापाऱ्याची पिशवी तपासलीपर्ण करा.
Answer» Answer: here is your answer => A very light colourless gas that does not BURN often use to FILL object that float in the air balloon . . . . HOPE it's help you ...!! plz MARK as brain list...!! :-)

49.

५. खालील अपूर्ण कथा पूर्ण करा.फार फार वर्षापूर्वीची गोष्ट आहे ही.एक व्यापारी होता. एके दिवशी तो गावाला निघाला बोट त्यालाएक चोर भेटला. चोराने व्यापाऱ्याशी मैत्री केली,दोघेही रात्री एका धर्मशाकेत उतरले.सगो गाट झोपल्यावर लोउठला. त्याने व्यापाऱ्याची पिशवी तपासलीपर्ण करा.

Answer»

Answer:

here is your answer =>

A very light colourless gas that does not BURN often use to FILL object that float in the air balloon .

.

HOPE it's help you ...!!

plz MARK as brain list...!! :-)

Discussion

50.	Theimage of points A & B in theline I are P and a respectively thenPQ -----PQ-
Answer» A unicellular organism, also known as a single-celled organism, is an organism that consists of a single cell, unlike a multicellular organism that consists of multiple cells. Unicellular organisms fall into two general categories: prokaryotic organisms and eukaryotic organisms. All prokaryotes are unicellular and are classified into bacteria and archaea. Many eukaryotes are multicellular, but many are unicellular such as protozoa, unicellular ALGAE, and unicellular FUNGI. Unicellular organisms are thought to be the oldest form of LIFE, with early protocells possibly emerging 3.8–4 BILLION years ago

50.

Theimage of points A & B in theline I are P and a respectively thenPQ -----PQ-

Answer»

A unicellular organism, also known as a single-celled organism, is an organism that consists of a single cell, unlike a multicellular organism that consists of multiple cells. Unicellular organisms fall into two general categories: prokaryotic organisms and eukaryotic organisms. All prokaryotes are unicellular and are classified into bacteria and archaea. Many eukaryotes are multicellular, but many are unicellular such as protozoa, unicellular ALGAE, and unicellular FUNGI. Unicellular organisms are thought to be the oldest form of LIFE, with early protocells possibly emerging 3.8–4 BILLION years ago

Discussion

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7 * 218-5382eat 1 by 2 - 35 by 8 ​

here is your answer =>

A very light colourless gas that does not BURN often use to FILL object that float in the air balloon .

HOPE it's help you ...!!

plz MARK as brain list...!! :-)

Theimage of points A & B in theline I are P and a respectively thenPQ -----PQ-​

In a class test, (+5) marks are given for every correct answer and (-2) for every incorrect answer. Jay answered all the questions and scored (-12) marks though he got 4 correct answers. How many incorrect answers had he attempted?

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Solve these questions by step by step please

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Can any one represent rational numbers given in above question I will mark as brainlist...............

Arrange the following number in ascending order. 732550,713550 ,713505,731505

Please find the square root of this

daveshi has a total of rs 590 as currency notes in denomination of rs 50,rs20 and rs 10.the ratio of the number of rs50 notes and rs20 notes is 3:5.if she has a total of 25 notes,how many notes of each denominations she has?

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Convert 1m³to cm³in physics

Arrange the following numbers in ascending order. 396752,3696275 ,396275, 373568

Please answer 3,5,6

Q6:LCM of 8, 16 and 64 is.O a) 64Ob) 48Oc) 32Od) 128

AbArrancethe followingnumbers is ascending75376 و727374کا 73

Correct answer will be brain list

Simplify:2.89 + 1.44(1) 2.89 - 1.44(ii) V3.61 -2.25V3.61 +2.25

Write the principle of mathematical induction.

Q4:LCM of 10, 12 and 20 by prime factors is

6 Arrange the following numbers is ascendingاو زيارتي376 (752,564,275یا 3735 و 376225

Q3LCM of 6, 9 and 15 by prime factors isO a) 30Ob) 45Oc) 60Od) 90

Q. evaluate 1. (-7 ) +(-18) 2. 56+90 3. (-120 )+(-74) 4.(-22) + (-14 ) 5. (-10) + (- 23) 6. 34+89 +60 7. (-75) + (-33) +(-13)

А) 312 р. 36. 7. В2175, 37 с.

Q2:LCM of 24, 35 and 48 by p ime factors isO a) 840Ob) 360Oc) 1680Od) 240

How to solve this problem

a Jeep travels with a speed of 80km/hr and reaches it's destination in 3hour . what is the distance

Show how5 can be represented on the number line.c.

Divide the sum of -13/5 and 12/7 by the product of -31/7 and 1/2

Find (x+y) - (x-y) if x = 5/7 , y = -3/9

7 * 218-5382eat 1 by 2 - 35 by 8

Theimage of points A & B in theline I are P and a respectively thenPQ -----PQ-