98971 + Interview Questions in Primary School in Math

1.	67654 with 13 multiply
Answer» Step-by-step explanation: 879502 is the ANSWER DOOD okayyyyuy

1.

67654 with 13 multiply

Answer»

Step-by-step explanation:

879502 is the ANSWER DOOD okayyyyuy

Discussion

2.	LCM of 15 45 25full method
Answer» Answer: 225 Step-by-step EXPLANATION: l.c.m OF15 45 25 = 225

2.

LCM of 15 45 25full method

Answer»

Answer:

225

Step-by-step EXPLANATION:

l.c.m OF15 45 25 = 225

Discussion

3.	X³+6x2+11x+6 using factor theurom
Answer» ANSWER: The FACTORS are 1, 2, and 3 Step-by-step explanation: According to FACTOR theorem, if (x - a) is a polynomial factor f(x), then f(a) = 0 let f(x)=x3-6x2+11x-6 Let US check if (x - 1) is the factor of f(x), Then, f(1)=13-6(12)+11(1)-6=1-6=1-6+11-6=0 Therefore (x-1) is a factor of f(x) Let us check for the other factors Hence, f(x) =(x - 1) (X2 - 5x+6) x2-5x+6=x2-2x-3x+6 =x(x - 2) -3(x - 2) =(x - 2) (x - 3) f(x) =(x - 1) (x - 2) (x - 3) Therefore, 1, 2, 3 are the factors of f(x)

3.

X³+6x2+11x+6 using factor theurom

Answer»

ANSWER:

The FACTORS are 1, 2, and 3

Step-by-step explanation:

According to FACTOR theorem, if (x - a) is a polynomial factor f(x), then f(a) = 0

let f(x)=x3-6x2+11x-6

Let US check if (x - 1) is the factor of f(x),

Then,

f(1)=13-6(12)+11(1)-6=1-6=1-6+11-6=0

Therefore (x-1) is a factor of f(x)

Let us check for the other factors

Hence,

f(x) =(x - 1) (X2 - 5x+6)

x2-5x+6=x2-2x-3x+6

=x(x - 2) -3(x - 2)

=(x - 2) (x - 3)

f(x) =(x - 1) (x - 2) (x - 3)

Therefore, 1, 2, 3 are the factors of f(x)

Discussion

4.	What is the diffrence?
Answer» Idkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Have a GREAT DAY

Discussion

5.	S Represent the numbers 1.250; 1,300; and1450 on a number line
Answer» ANSWER: 678900 Step-by-step EXPLANATION: EASY

5.

S Represent the numbers 1.250; 1,300; and1450 on a number line

Answer»

ANSWER: 678900

Step-by-step EXPLANATION: EASY

Discussion

6.	Show that there areinfinitely many primes of the form 4n+3
Answer» All integers are DIVISIBLE by some prime! So every prime which divides N must be of the form 4n+1 (Why must it be of this form?). Because we've assumed that p1,…,PK are the only primes of the form 4n+3. If NONE of those divide N, and 2 doesn't divide N, then all its prime factors must be of the form 4n+1. mark me brainnest PLEASE

6.

Show that there areinfinitely many primes of the form 4n+3

Answer»

All integers are DIVISIBLE by some prime! So every prime which divides N must be of the form 4n+1 (Why must it be of this form?). Because we've assumed that p1,…,PK are the only primes of the form 4n+3. If NONE of those divide N, and 2 doesn't divide N, then all its prime factors must be of the form 4n+1.

mark me brainnest PLEASE

Discussion

7.	Balance the Equation 1》 K + H2O = KOH + H2
Answer» Answer: 2K + 2H2O → 2KOH + H2 Step-by-step EXPLANATION:

7.

Balance the Equation 1》 K + H2O = KOH + H2

Answer»

Answer:

2K + 2H2O → 2KOH + H2

Step-by-step EXPLANATION:

Discussion

8.	√12 × √15 is equal to ?
Answer» ANSWER: 6√5 is the answer . HOPE THIS ANSWER HELPS YOU MARK ME AS BRAINLIST.

8.

√12 × √15 is equal to ?

Answer»

ANSWER:

6√5 is the answer .

HOPE THIS ANSWER HELPS YOU

MARK ME AS BRAINLIST.

Discussion

9.	If 56x 52x=510 then find x
Answer» Step-by-step EXPLANATION: What is the SIGN after 56X

9.

If 56x 52x=510 then find x

Answer»

Step-by-step EXPLANATION:

What is the SIGN after 56X

Discussion

10.	The sides of a triangle are in the Ratio 4:5:6 and its perimeter is 120cmWhat are the length of sides?
Answer» Given :- The sides of a triangle are in the Ratio 4:5:6 Perimeter of triangle is 120cm To Find :- What are the length of sides? Solution :- ~Here, we’re given the ratio of sides of a triangle , perimeter of that triangle and we need to find the length of its sides. Firstly we’ll ASSUME the sides of the triangle according to the given RATIOS and then we’ll form an equation according to the question. After solving that equation we can find the sides of the triangle. _____________ As we know that, ✬ Perimeter of a triangle = SUM of all sides Let the length of sides be : First SIDE = 4X Second side = 5x Third side = 6x Solving for x :- ⟶ 4x + 5x + 6x = 120 ⟶ 15x = 120 ⟶ x = 120/15 ⟶ x = 8 Finding the sides :- 》First side = 4x = 4 × 8 = 24 cm 》Second side = 5x = 5 × 8 = 40 cm 》Third side = 6x = 6 × 8 = 48 cm _____________ Hence, Sides of the triangle are 24 cm , 40 cm , 48 cm

10.

The sides of a triangle are in the Ratio 4:5:6 and its perimeter is 120cmWhat are the length of sides?

Answer»

Given :-

The sides of a triangle are in the Ratio 4:5:6

Perimeter of triangle is 120cm

To Find :-

What are the length of sides?

Solution :-

~Here, we’re given the ratio of sides of a triangle , perimeter of that triangle and we need to find the length of its sides. Firstly we’ll ASSUME the sides of the triangle according to the given RATIOS and then we’ll form an equation according to the question. After solving that equation we can find the sides of the triangle.

_____________

As we know that,

✬ Perimeter of a triangle = SUM of all sides

Let the length of sides be :

First SIDE = 4X

Second side = 5x

Third side = 6x

Solving for x :-

⟶ 4x + 5x + 6x = 120

⟶ 15x = 120

⟶ x = 120/15

⟶ x = 8

Finding the sides :-

》First side = 4x = 4 × 8 = 24 cm

》Second side = 5x = 5 × 8 = 40 cm

》Third side = 6x = 6 × 8 = 48 cm

_____________

Hence,

Sides of the triangle are 24 cm , 40 cm , 48 cm

Discussion

11.	5. Which of the two rational numbers is greater in the given pair?3-2(1) or o8or 0--5 -4(iv)3(v)(vi)7 74وorWINoror - 1
Answer» ANSWER: can't UNDERSTAND your QUESTION POST it again

11.

5. Which of the two rational numbers is greater in the given pair?3-2(1) or o8or 0--5 -4(iv)3(v)(vi)7 74وorWINoror - 1

Answer»

ANSWER:

can't UNDERSTAND your QUESTION POST it again

Discussion

12.	A number exceeds 37684955 by 3615045. What is that oumber?tec
Answer» Answer: 34069910 Step-by-step EXPLANATION:

12.

A number exceeds 37684955 by 3615045. What is that oumber?tec

Answer»

Answer:

34069910

Step-by-step EXPLANATION:

Discussion

13.	The value of f(y) = 5y−4y²+3 when y = 2, is
Answer» ANSWER: F(y)=5y-4y2+3 f(2)=52-422+3 =10-16+3 = -6+3 = -3 Step-by-step EXPLANATION:*

13.

The value of f(y) = 5y−4y²+3 when y = 2, is

Answer»

ANSWER:

F(y)=5y-4y2+3

f(2)=5*2-4*2*2+3

=10-16+3

= -6+3

= -3

Step-by-step EXPLANATION:

Discussion

14.	Divide the following 5÷4634
Answer» ANSWER: ur answer is0.0010789814415 Step-by-step explanation: HOPE IT'S HELPFUL TO U PLZ THANK ME PLZ PLZ HAVE A NICE DAY

14.

Divide the following 5÷4634

Answer»

ANSWER:

ur answer is0.0010789814415

Step-by-step explanation:

HOPE IT'S HELPFUL TO U

PLZ THANK ME PLZ PLZ

HAVE A NICE DAY

Discussion

15.	Find the valueof x,if 3/-5=x/15
Answer» ANSWER: the VALUE of X will be 9 i hope it jelped U

15.

Find the valueof x,if 3/-5=x/15

Answer»

ANSWER:

the VALUE of X will be 9 i hope it jelped U

Discussion

16.	the expression for"s times Y from which 3 is subtracted " is ( ) A)3-5y B)5y-3 C)5+3y D)y+15
Answer» Answer: 5 TIMES y from which 3 is subtracted⇒5×y−3⇒5y−3. Step-by-step EXPLANATION: HOPE it's HELPFUL to you!

16.

the expression for"s times Y from which 3 is subtracted " is ( ) A)3-5y B)5y-3 C)5+3y D)y+15

Answer»

Answer:

5 TIMES y from which 3 is subtracted⇒5×y−3⇒5y−3.

Step-by-step EXPLANATION:

HOPE it's HELPFUL to you!

Discussion

17.	1: Find9×(−5)2: Find (−11)×(−7)3: Find (−9)×(−3)×(−2)×10Sum of the values obtained in questions 1,2and 3is _______.
Answer» 1.-45 2.77 3.540 THIS IS THE ANSWER....STUDY HARD....

17.

1: Find9×(−5)2: Find (−11)×(−7)3: Find (−9)×(−3)×(−2)×10Sum of the values obtained in questions 1,2and 3is _______.

Answer»

1.-45

2.77

3.540

THIS IS THE ANSWER....STUDY HARD....

Discussion

18.	Write the pair of integers whose sum is -7
Answer» Answer: (-3)+(-4) Step-by-step explanation: HOPE it HELPS

18.

Write the pair of integers whose sum is -7

Answer»

Answer:

(-3)+(-4)

Step-by-step explanation:

HOPE it HELPS

Discussion

19.	Estimate each of the following using general rule;B]796-314‘’’
Answer» ANSWER: Step-by-step explanation: 796−314 Rounding of to NEAREST hundered 796\Rightarrow800\ \ and\ \ 314\Rightarrow300796⇒800 and 314⇒300 796-314\ \RIGHTARROW\ 800-300796−314 ⇒ 800−300 = 500

19.

Estimate each of the following using general rule;B]796-314‘’’

Answer»

ANSWER:

Step-by-step explanation:

796−314

Rounding of to NEAREST hundered

796\Rightarrow800\ \ and\ \ 314\Rightarrow300796⇒800 and 314⇒300

796-314\ \RIGHTARROW\ 800-300796−314 ⇒ 800−300

= 500

Discussion

20.	A factory requires 42 machines to produce a given number of articles in 81 days. How many machines would be required to produce the same number of articles in 54 days?
Answer» 42×81 = 3,402 3,402÷ 54 = 63

20.

A factory requires 42 machines to produce a given number of articles in 81 days. How many machines would be required to produce the same number of articles in 54 days?

Answer»

42×81 = 3,402

3,402÷ 54 = 63

Discussion

21.	Find the degree of the polynomial 5x³ + 0x² +2x¹ + 1x°+7
Answer» ANSWER: నీకు తెలుసా? ఎయిర్టెల్ తో గడువుకు ముందే మీరు రీఛార్జ్ చేస్తే, మీ ప్రస్తుత ప్యాక్ వాలిడిటీలో మీ ప్యాక్ వాలిడిటీ జోడించబడుతుంది, కాబట్టి రీఛార్జ్ చేయడానికి చివరి రోజు వరకు వేచి ఉండకండి. క్లిక్ చేయండి u.airtel.in/rchg5

21.

Find the degree of the polynomial 5x³ + 0x² +2x¹ + 1x°+7

Answer»

ANSWER:

నీకు తెలుసా? ఎయిర్టెల్ తో గడువుకు ముందే మీరు రీఛార్జ్ చేస్తే, మీ ప్రస్తుత ప్యాక్ వాలిడిటీలో మీ ప్యాక్ వాలిడిటీ జోడించబడుతుంది, కాబట్టి రీఛార్జ్ చేయడానికి చివరి రోజు వరకు వేచి ఉండకండి. క్లిక్ చేయండి u.airtel.in/rchg5

Discussion

22.	the product of two integers is -144. and sim of the integer is -7 . find the smallest number. Please explain the answer
Answer» Concept:- Here, We have given the product of two integers and the sum of two integers. We have to find the smallest integer in both integers. Let's find Given:- Product of two integers is -144. Sum of two integers is -7. To Find:- Smallest NUMBER in both the integers ? Solution:- Here, Let the one integer be x. Then, ANOTHER integer will be y. Now, According to the question we have, $\sf{xy = -144}$ -------------- (i) $\sf{x + y = -7}$ --------------- (ii) By SOLVING equation (ii) we get, $\sf{x = -7 - y}$ ----------- (III) Now, Putting the equation (iii) in equation (i) we get, $\sf{\Longrightarrow (-7 - y)y = -144}$ $\sf{\Longrightarrow -(7y + y^{2}) = -144}$ [ Taking (-) common ] $\sf{\Longrightarrow y^{2} + 7y = 144}$ $\sf{\Longrightarrow y^{2} + 7y - 144 = 0}$ By middle term splitting, $\sf{\Longrightarrow y^{2} + 16y - 9y - 144 = 0}$ $\sf{\Longrightarrow y(y + 16) - 9(y + 16) = 0}$ $\sf{\Longrightarrow (y + 16) (y - 9) = 0}$ EQUATING both the equations separately we get, $\Longrightarrow \begin{array}{c\|c} \bf y - 9 = 0 & \bf y + 16 = 0\end{array}$ $\Longrightarrow \begin{array}{c\|c} \bf y = 9 & \bf y = -16\end{array}$ Hence, The smallest number is -16.

22.

the product of two integers is -144. and sim of the integer is -7 . find the smallest number. Please explain the answer

Answer»

Concept:-

Here, We have given the product of two integers and the sum of two integers. We have to find the smallest integer in both integers. Let's find

Given:-

Product of two integers is -144.
Sum of two integers is -7.

To Find:-

Smallest NUMBER in both the integers ?

Solution:-

Here, Let the one integer be x.

Then, ANOTHER integer will be y.

Now, According to the question we have,

$\sf{xy = -144}$ -------------- (i)

$\sf{x + y = -7}$ --------------- (ii)

By SOLVING equation (ii) we get,

$\sf{x = -7 - y}$ ----------- (III)

Now, Putting the equation (iii) in equation (i) we get,

$\sf{\Longrightarrow (-7 - y)y = -144}$

$\sf{\Longrightarrow -(7y + y^{2}) = -144}$ [ Taking (-) common ]

$\sf{\Longrightarrow y^{2} + 7y = 144}$

$\sf{\Longrightarrow y^{2} + 7y - 144 = 0}$

By middle term splitting,

$\sf{\Longrightarrow y^{2} + 16y - 9y - 144 = 0}$

$\sf{\Longrightarrow y(y + 16) - 9(y + 16) = 0}$

$\sf{\Longrightarrow (y + 16) (y - 9) = 0}$

EQUATING both the equations separately we get,

$\Longrightarrow \begin{array}{c|c} \bf y - 9 = 0 & \bf y + 16 = 0\end{array}$

$\Longrightarrow \begin{array}{c|c} \bf y = 9 & \bf y = -16\end{array}$

Hence, The smallest number is -16.

Discussion

23.	Find the circumfences of a circle whose radius is 3.5
Answer» ANSWER: CIRCUMFERENCE = 2πr = 2×22/7×3.5 = 22 HOPE IT HELP U..

23.

Find the circumfences of a circle whose radius is 3.5

Answer»

ANSWER:

CIRCUMFERENCE = 2πr

= 2×22/7×3.5

= 22

HOPE IT HELP U..

Discussion

24.	A.Solve the following:-1. 9x+5=4(x-2)+82. (7y/5) =y-43. 4x/5-7/10=24. (8x-3)/3x=25.3x+(2/3)=2x+1B.Solve for x and verify the result:-1. 0.3x+0.4=0.28x+1.16
Answer» 1. 9x +5 = 4x 5 x. = (-5) x = -1 2. 7 y / 5 = 5y -20 / 5 7 y. =. 5y - 20 y. = 10 3 . 4 x / 5 = 20 / 10 + 7 / 10 4x. = 27 /2 x. = 27 / 8 4. 8x-3. = 6x 2 x. = 3 x. = 3/2 5. 3X - 2x = 1 - 2/3 x. = 1/3 B 1. 0. 3x + 0.4 = 0.28 x + 1.116 0.3 x - 0.28 x =. 1.116 - 0.4 0.02 x. = 0.716 x. = 36.3

24.

A.Solve the following:-1. 9x+5=4(x-2)+82. (7y/5) =y-43. 4x/5-7/10=24. (8x-3)/3x=25.3x+(2/3)=2x+1B.Solve for x and verify the result:-1. 0.3x+0.4=0.28x+1.16

Answer»

1. 9x +5 = 4x

5 x. = (-5)

x = -1

2. 7 y / 5 = 5y -20 / 5

7 y. =. 5y - 20

y. = 10

3 . 4 x / 5 = 20 / 10 + 7 / 10

4x. = 27 /2

x. = 27 / 8

4. 8x-3. = 6x

2 x. = 3

x. = 3/2

5. 3X - 2x = 1 - 2/3

x. = 1/3

B

1. 0. 3x + 0.4 = 0.28 x + 1.116

0.3 x - 0.28 x =. 1.116 - 0.4

0.02 x. = 0.716

x. = 36.3

Discussion

25.	Make x the subject in each of the following equations :ax - y = 2y please don't answer randomly it will make others think my questions already answerred :(
Answer» AX - y = 2y ax. = 3Y X. =. 3y / a

25.

Make x the subject in each of the following equations :ax - y = 2y please don't answer randomly it will make others think my questions already answerred :(

Answer»

AX - y = 2y

ax. = 3Y

X. =. 3y / a

Discussion

26.	Help me
Answer» ANSWER: [{-3]}^{2} =-3^2 answer is = -1

26.

Help me

Answer»

ANSWER:

[{-3]}^{2} =-3^2

answer is = -1

Discussion

27.	what is the full form of maths ? I'm also happy had lunch?
Answer» Answer: FULL form of maths (__) Maths can be Mathematics or M = Mentally A = Affected T = TEACHERS H = Harrasing S = STUDENTS I will have my LUNCH today is AAM Dal and Rice as usual summer lunch ;)

27.

what is the full form of maths ? I'm also happy had lunch?

Answer»

Answer:

FULL form of maths (*__*)

Maths can be Mathematics

or

M = Mentally

A = Affected

T = TEACHERS

H = Harrasing

S = STUDENTS

I will have my LUNCH

today is AAM Dal and Rice as usual summer lunch ;)

Discussion

28.	The number of whole numbers between 22 and (a. 30) (b. 31) (c. 32) (d. 42)
Answer» Answer: A. Between 22 and 30 are 8. B. Between 22 and 31 are 9. C. Between 22 and 32 are 10. D. Between 22 and 42 are 20.

28.

The number of whole numbers between 22 and (a. 30) (b. 31) (c. 32) (d. 42)

Answer»

Answer:

A. Between 22 and 30 are 8.

B. Between 22 and 31 are 9.

C. Between 22 and 32 are 10.

D. Between 22 and 42 are 20.

Discussion

29.	chord of length 24 cm is at a distance of 9 cm from the centre of the circle what is the length of the longest chord of the circle
Answer» Concept:- Here, We have given the length of chord and the DISTANCE from the CENTRE to the chord. We have to find here the longest chord of the circle. To finding this we use PYTHAGORAS theorem. Given:- Length of chord is of 24 cm. Distance from the centre of the circle to the chord is 9 cm. To Find:- The length of the longest chord of the circle. Solution:- Here, Let the radius of the circle be r cm. We know that, The perpendicular to a chord, drawn from the centre of the circle, bisects the chord. So, AP = BP = 12 cm Now, By Pythagoras theorem we have, $\sf{\implies OA^{2} = OP^{2} + AP^{2}}$ $\sf{\implies r^{2} = 9^{2} + 12^{2}}$ $\sf{\implies r^{2} = 81 + 144}$ $\sf{\implies r^{2} = 225}$ $\sf{\implies r = \sqrt{225}}$ $\sf{\implies r = 15\ cm}$ Since, We know that the longest chord of any circle is its diameter. And, Diameter = 2 × Radius = 2 × 15 cm = 30 cm Hence, Length of the longest chord of the circle is 30 cm.

29.