98971 + Interview Questions in Primary School in Math

1.	Please answer this question very fast its very eargent .
Answer» You are a DAVIAN RIGHT? have this ANSWER in my notebook just have named the LINES differently. HOPE it is convenient

Discussion

2.	there are three cubes their volumes are in the ratio 2:3:4 the sum of the volumes of the cubes is 19773 cm find the volume of each cube
Answer» LET the no.be 2x,3x,4x a/q=volume = 6X(SIDE)2

Discussion

3.	The HCF of two number is 6 times less than their.if one of the number is 6.find other number
Answer» INCOMPLETE QUESTION MATE!!

Discussion

4.	Find the smallest number by which 20480 must be divided to obtain a perfect cube
Answer» Let's factorize 20480 by LCM. 2 \| 20480 2 \| 10240 2 \| 5120 2 \| 2560 2 \| 1280 2 \| 640 2 \| 320 2 \| 160 2 \| 80 2 \| 40 2 \| 20 2 \| 10 5 \| 5 \| 1 20480 = 2^12 x 5 = (2^4)^3 x 5 = 16^3 x 5 16^3 x 5 divided by 5 gives 16^3. ∴ 5 is the smallest number by which 20480 is divided to obtain a perfect cube. Hope this may be helpful. Please mark my ANSWER as the brainliest if this may be helpful. THANK you. Have a nice day.

4.

Find the smallest number by which 20480 must be divided to obtain a perfect cube

Answer»

Let's factorize 20480 by LCM.

2 | 20480

2 | 10240

2 | 5120

2 | 2560

2 | 1280

2 | 640

2 | 320

2 | 160

2 | 80

2 | 40

2 | 20

2 | 10

5 | 5

| 1

20480 = 2^12 x 5 = (2^4)^3 x 5 = 16^3 x 5

16^3 x 5 divided by 5 gives 16^3.

∴ 5 is the smallest number by which 20480 is divided to obtain a perfect cube.

Hope this may be helpful.

Please mark my ANSWER as the brainliest if this may be helpful.

THANK you. Have a nice day.

Discussion

5.	3/4 +(x- 1) =x - 3 solve the question
Answer» 3/4+(-3-1) 3/4-4 -1/4 I HOPE it's RIGHT

Discussion

6.	4,14,49,? ,319,644What will be the answer
Answer» I THINK 319 is ANSWER

Discussion

7.	A person made a profit of 22, 2/9% by selling a mobile phone for Rs. 2200. find the cost price of the mobile
Answer» HEY BRO here is ur ANSWER profit=sp-CP cp=sp-profit that is, cp= 2200-22 cp=2178. ans hope u get that

Discussion

8.	Factorise: 2/3x^2-17/3x-28
Answer» Is it the ANSWER is , X= 12,-3.5 ?

Discussion

9.	(a4+a2+1)(a4+a2-1) factor this
Answer» USING $a squre - b squre$

Discussion

10.	an aeroplane is flying at a height of 3750 M the piot sees a submarine just below the aeroplane 250m what is the distance between the aeroplane has a submarine
Answer» This is an Integral Question The given distance of the AEROPLANE is above the land so it is : +3750 The given distance of the submarine is under the SEA which is below the land so it is : -250 The total distance between the aeroplane is : +3750+(-250) = +3750-250 There is +. = 3750 And a - so 250 You must. _____ Subtract. 3500 And put the BIGGER number sign +3500 is the total distance between the aeroplane and the submarine

Discussion

11.	there are 786 students in a school out of 38 students were absent on Monday and 58 students on Tuesday find the difference of the number of students present on the two days
Answer» TOTAL no. of STUDENTS= 786 No. of students absent of Monday = 38 No. of students absent on Tuesday= 58 Total no. of students on both the days= 38+59=100 no. of students PRESENT on Monday and Tuesday= 786-100= 686

Discussion

12.	(cos²x) ½=? In second quadrant
Answer» I HOPE it can HELP you and PLEASE MARK it BRAINLEIST

Discussion

13.	105 multiply 40 divide 7 + 6 - 1
Answer» 600+6-1 =605 is UR ANSWER DEAR

Discussion

14.	56divide 14 multiply 3 - 10 divide 5 + 1
Answer» 9 is UR CORRECT ANSWER DEAR

Discussion

15.	Heyaa guys..need help!!plz solve...
Answer» $\frac{ - 3}{5} \times \frac{3}{7} - \frac{1}{5} + \frac{3}{2} - \frac{3}{7} \\ \frac{ - 9}{35} - \frac{1}{5} + \frac{3}{2} - \frac{3}{7} \\ \frac{ - 18 - 14 + 105 - 30}{70} \\ \frac{ - 12 + 75}{70} \\ \frac{63}{70} is \: the \: answer$

Discussion

16.	{(-5/8-1/4) - (-1/8--2/3)}
Answer» HEYA mate I HOPE it HELPS u -5/8-1/4+1/8+2/3 { -*-=+} -5-2/8 + 3+16/24 -7/8 + 19/24 -21+19/24 -2/24 -1/12 pls mark it as BRAINLIEST

Discussion

17.	4x2+1÷4x2+2-9y2. Factorise it
Answer» 4x^2 + 1/4x^2 - 9y^2 +2 = (2X)^2 +(1/2x)^2 +2 -(3Y)^2 =(2x+ 1/2x)^2 -(3y)^2 =(2x+3y+1/2x)(2x-3y+1/2x)

Discussion

18.	2x+y=7xy/3 , x+3y=11xy/3
Answer» Here is your ANSWER.

Discussion

19.	Tell me Q-2 plzzzz my best friend
Answer» Hope U like my answer. ===================== 2) a) False. b)true c)true d) false e) false f) true. g) true. h) true. i) False. j)true. Hope this is UR REQUIRED answer Proud to help you

Discussion

20.	Lcm of 255,340,765 in division method
Answer» HOPE it HELPS you and PLEASE MARK it as BRAINLIEST

Discussion

21.	in the xy-plan ,one of the vertices of square 's' is point (2,2). The diagonals of s intersect at the point (6,6). what is the area of 's'?
Answer» AREA of 's' is 2 sq.unit.

Discussion

22.	In a group of children two fifth play cricket,one fifth play badminton ,one fourth play football and remaining 30 play other games.a)how many children are there in group?b)how many play 1)cricket 2)badminton 3)football
Answer» LET total no. be x so ACC to situation x- (2/5 x + 1/5 x +1/4 x) = 30 so x - (8+4+5)x/20 = 30 x - 17/20x = 30 3x/20 = 30 3x = 600 x = 200 ... now cricket --- 2/5 (200) = 80 badminton. ---- 1/5(200) = 40 football --- 1/4(200) = 50... Hope its worth a BRAINLIEST

Discussion

23.	Factorise the following :-1. x^2 + 12x + 272. y^2 + y - 1323. x^2 + 11x + 304. x^2 - 11x - 425. z^2 - 12z + 276. p^2 - 5p - 6
Answer» So here is ur answer .. if U LIKE it please MARK it as brainliest

Discussion

24.	Please solve question 3 and 430 point
Answer» For 4TH QUESTION the ANSWER is GIVEN above

Discussion

25.	Please solve 1 and 2 question
Answer» I only GOT the SOLUTION for the question 2 . so PLEASE excuse me.

Discussion

26.	Factorise 72 -x-x square
Answer» DEAR here is UR answer -(x²+x-72) =-(x²+9x-8x-72) =-[x(x+9)-8(x+9)] =-(x-8)(x+9) =(8-x) (x+9) I hope it HELPS you dear

Discussion

27.	Please solve this 50 point
Answer» 1b 2a 3b.................

Discussion

28.	Plzz give me photo of this lcm and solve it plzz fast
Answer» HEY I can GIVE you the HALF of it TELL 189 .

Discussion

29.	Prove that the sum of angles if quadrilateral is 360
Answer» Formula used : ( n - 2 ) 180 n = number of SIDES, ========================= In QUADRILATERAL, Number of sides = 4 HENCE, SUM of angles = ( 4 - 2 ) 180 = ( 2 ) 180 = 360 Proved.

29.

Prove that the sum of angles if quadrilateral is 360

Answer»

Formula used : ( n - 2 ) 180

n = number of SIDES,

=========================

In QUADRILATERAL,

Number of sides = 4

HENCE,

SUM of angles = ( 4 - 2 ) 180

= ( 2 ) 180

= 360

Proved.

Discussion

30.	1. ax+by =a-b bx-ay=a+b
Answer» Abx+b²y=ab-b²...(1) abx-a²y=a²+ab...(2) (1)-(2) abx+b²y-abx+a²y=ab-b²-a²-ab (b²+a²)y=-(b²+a²) y=-(b²+a²)/(b²+a²)=-1 Put y=-1 in (1) ax-b=a-b ax=a-b+b x=a/a=1

Discussion

31.	FRIENDS PLEASW ANSWER THIS QUESTION IN THE PIC
Answer» Not SURE ^_^but TRIED

Discussion

32.	a man purchased eggs at the rate of 5 for 3 eggs and sold them at 5 eggs for Rs 12. Thus he gained Rs 143 in all find the number of eggs he bought ??
Answer» LET the no. Of EGGS brought by him =x He GOT 3eggs at rupees =5 So he got x eggs at rupees =(5x/3) He sold 5 eggs at rupees=12 So He sold x eggs at rupees =(12x/5) His profit is =143 His profit in TERMS of x=(12x/5)-(5x/3) Put both the values equal We get, 11x=2145 So, x=195 Thus the man had bought 195 eggs I hope this answer is correct!!

Discussion

33.	Answer in step by step
Answer» ANSWER-》》 5(i)SOLUTION. $\frac{4 }{13} \times \frac{ - 7}{11} = \frac{ - 7}{11} \times \frac{4}{13} \\ \frac{ - 28}{143}$ Cumulative PROPERTY of multiplication for whole numbers is inserted. 5(ii)Solution. $\frac{ - 7}{8} \times ( \frac{2}{9} \times \frac{3}{5} ) = ( \frac{ - 7}{8} \times \frac{2}{9} ) \times \frac{3}{5} \\ \frac{7}{60}$ Associative Property of multiplication is inserted. 5(III)Solution. $\frac{3}{11} \times ( \frac{2}{5} + \frac{1}{2} = \frac{3}{11} \times \frac{2}{5} + \frac{3}{11} \times \frac{1}{2} \\ = \frac{270}{110}$ 5(IV)Solution. $\frac{4}{15} \times ( \frac{5}{6} - \frac{2}{3} )\\ = \frac{4}{5} \times \frac{5}{6} - \frac{4}{15} \times \frac{2}{3} \\ = \frac{2}{15}$ $hope \: it \: helps \: you \: out$

Discussion

34.	Please give answer step by step please in page answer
Answer» UR ANSWER is here.this is the answer of 1ST ONE

Discussion

35.	the length of a rectangle is 20 cm more than its breath.if the length of the rectangle is greater than 140 cm, find its minimum breath.
Answer» L = length B = breadth l = b + 20 , l > 140 b + 20 > 140 b = 120

Discussion

36.	Raghu has enough money to buy 72 machines worth rupees 200 each how many machines can be bought , if he gets a discount of 10% on each machine ???no spam answers plzzz
Answer» TOTAL MONEY he have =72 x200 =14400 10%of 200 =20 machines. BOUGHT= 14400/20=7200

Discussion

37.	1. x-y = a+b ax+by=a²-b²
Answer» ..............,,,,,,,,,,

Discussion

38.	if 15 workers can build a wall in 48 hours then find the number of workers required to complete the same work in 30 hours
Answer» Here is your answer. 15 WORKERS => 48 hrs x=> 30 hrs 15×48=x×3015×48=x×30 15×483015×4830=x=x x=24workersx=24workers Answer : 24

Discussion

39.	if the weight of 8 sheets of thick paper is 40 grams how many sheets of the same paper would weight 1.5 kilograms
Answer» 1.5 KILOGRAM EQUALS 1500 gram 40gm NEEDS 8sheets So1500gm will NEED=(8/40)*1500=300

Discussion

40.	Solve the question 3y/5-y+2/2
Answer» ANSWER-》》 $for \: more \: information \: look \: \\ up \: the \: \: attachment$

Discussion

41.	find the value of x in each of the following figure if l ll m...... send me with only photo with full explanation and by using corresponding property.
Answer» 180-110=70° 70°=x ...

Discussion

42.	Write the linear equation in two variable 1. The difference of two number is5
Answer» HEYA!! ---------- ----------------------------------------------------------------------------------------------------- ✴LINEAR EQUATION IN TWO VARIABLES✴ ---------------------------------------------------------------------------------------------------- LET ONE number be X Let the other number be Y The equation FORMED is , X - Y = 5 ---------------------------------------------------------------------------------------------------- -----------------------------------------------------------------------------------------------------

Discussion

43.	Y^2+4/3y^2 +7=1/2Plz solve this equation
Answer» Here is your ANSWER... HOPE this HELPS you

Discussion

44.	Please answer 7th question
Answer» SEE THE REFER ATTACHMENT. #BE BRAINLY.❤❤

Discussion

45.	Please solve the problem
Answer» The PICTURE is not CLEAR

Discussion

46.	दो संख्याओं का योगफल उनके गुणोत्तर माध्य का 6 गुना है दिखाइए संख्या (3+2√2):(3-2√2) होगी ?
Answer» HAY dear user - माना संख्याएं B और b हैं तब - a+b = 6√ab $\frac{a + b}{ \sqrt{ab} } = \frac{6}{1}$ दोनों संख्याओं में 2 से भाग देने पर $\frac{a + b}{2 \sqrt{ab} } = \frac{6}{2}$ योगांतरानुपात का नियमानुसार - $\frac{a + b + 2 \sqrt{a} \sqrt{b} }{a + b - 2 \sqrt{a} \sqrt{b} } = \frac{3 + 1}{3 - 1}$ $\frac{ (\sqrt{a}) {}^{2} + ( \sqrt{b}) {}^{2} + 2 \sqrt{a} \sqrt{b} }{( \sqrt{a} ) {}^{2} + ( \sqrt{b}) {}^{2} - 2 \sqrt{a \sqrt{b} } } = \frac{4}{2}$ $\| \frac{( \sqrt{a } + \sqrt{b} ) }{( \sqrt{a} - \sqrt{b} )} \| {}^{2} = 2$ $\frac{ \sqrt{a} + \sqrt{b} }{ \sqrt{a} - \sqrt{b} } = \frac{ \sqrt{2} }{1}$ योगांतरानुपात के नियमानुसार- $\frac{( \sqrt{a } + \sqrt{b} ) + ( \sqrt{a} - \sqrt{b} )}{( \sqrt{a} + \sqrt{b} ) - ( \sqrt{a} - \sqrt{b} )} = \frac{ \sqrt{2} + 1}{ \sqrt{2} - 1 }$ $\frac{ \sqrt{a } }{ \sqrt{b} } = \frac{ \sqrt{2 } + 1}{ \sqrt{2} - 1}$ दोनों पक्षों का वर्ग करने पर $\frac{a}{b} = \frac{( \sqrt{2} + 1) {}^{2} }{( \sqrt{2} - 1) {}^{2} }$ $= \frac{2 + 1 + 2 \sqrt{2} }{2 + 1 - 2 \sqrt{2} } = \frac{3 + 2 \sqrt{2} }{3 - 2 \sqrt{2} }$ we can say that => 3+2√2 : 3-2√2 Hence PROVED REGARDS : community moderator

Discussion

47.	Pie chart how to do plz tell me fast ok
Answer» FIRST make the Table for Central angle. then draw a CIRCLE using compass and Mark those angles using protractors. write the LABELS. wait, I'll SEND a PIC of how to do.

Discussion

48.	Pie chart how to draw
Answer» hdudhfbbfidjsnjdjdndjjdjdj

Discussion

49.	Please answer 11,12 questions.please Answer it in detailed manner
Answer» 11.)Given right DABC, right angled at B. D and E are points of TRISECTION of the side BC Let BD = DE = EC = k Hence we GET BE = 2k and BC = 3k In ΔABD, by Pythagoras theorem, we get AD^2= AB^2+ BD^2 AD^2= AB^2+ k^2 Similarly, in ΔABE we get AE^2= AB^2+ BE^2 Hence AE^2= AB^2+ (2k)^2 = AB^2+ 4k^2 and AC^2= AB^2+ BC^2 = AB + (3k)^2 AC^2= AB^2+ 9k^2 Consider, 3AC^2+ 5AD^2= 3(AB^2+ 9k^2) + 5(AB^2 + 4k^2) = 8AB^2+ 32k^2 = 8(AB^2+ 4k^2) ∴ 3AC^2+ 5AD^2= 8AE^2 12.)Given ΔABC is an isosceles triangle in which ∠B = 90° ⇒ AB = BC By Pythagoras theorem, we have AC^2= AB^2+ BC^2 ⇒AC^2= AB^2+ AB^2[Since AB = BC] ∴ AC^2= 2AB^2→ (1) It is also given that ΔABE ~ ΔACD Recall that ratio of areas of SIMILAR triangles is equal to ratio of squares of their corresponding Hence ar(tri.ABE)/ar(tri.ACD) = AB^2/AC^2 ar(tri.ABE)/ar(tri.ACD) = AB^2/2AB^2 ar(tri.ABE)/ar(tri.ACD) = 1/2 ∴ ar(ΔABE) : ar(ΔACD) = 1 : 2

49.

Please answer 11,12 questions.please Answer it in detailed manner

Answer»

11.)Given right DABC, right angled at B.

D and E are points of TRISECTION of the side BC

Let BD = DE = EC = k

Hence we GET BE = 2k and BC = 3k

In ΔABD, by Pythagoras theorem, we get

AD^2= AB^2+ BD^2

AD^2= AB^2+ k^2

Similarly, in ΔABE we get

AE^2= AB^2+ BE^2

Hence AE^2= AB^2+ (2k)^2

= AB^2+ 4k^2 and

AC^2= AB^2+ BC^2

= AB + (3k)^2

AC^2= AB^2+ 9k^2

Consider, 3AC^2+ 5AD^2= 3(AB^2+ 9k^2) + 5(AB^2 + 4k^2)

= 8AB^2+ 32k^2

= 8(AB^2+ 4k^2)

∴ 3AC^2+ 5AD^2= 8AE^2

12.)Given ΔABC is an isosceles triangle in which ∠B = 90°

⇒ AB = BC

By Pythagoras theorem, we have AC^2= AB^2+ BC^2

⇒AC^2= AB^2+ AB^2[Since AB = BC]

∴ AC^2= 2AB^2→ (1)

It is also given that ΔABE ~ ΔACD

Recall that ratio of areas of SIMILAR triangles is equal to ratio of squares of their corresponding

Hence ar(tri.ABE)/ar(tri.ACD) = AB^2/AC^2

ar(tri.ABE)/ar(tri.ACD) = AB^2/2AB^2

ar(tri.ABE)/ar(tri.ACD) = 1/2

∴ ar(ΔABE) : ar(ΔACD) = 1 : 2

Discussion

50.	Multiple 12 x 12 x 12 suta nikliam in page
Answer» 1728 is the ANSWER .

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Please answer this question very fast its very eargent .

there are three cubes their volumes are in the ratio 2:3:4 the sum of the volumes of the cubes is 19773 cm find the volume of each cube

The HCF of two number is 6 times less than their.if one of the number is 6.find other number

Find the smallest number by which 20480 must be divided to obtain a perfect cube

3/4 +(x- 1) =x - 3 solve the question

4,14,49,? ,319,644What will be the answer

A person made a profit of 22, 2/9% by selling a mobile phone for Rs. 2200. find the cost price of the mobile

Factorise: 2/3x^2-17/3x-28

(a4+a2+1)(a4+a2-1) factor this

an aeroplane is flying at a height of 3750 M the piot sees a submarine just below the aeroplane 250m what is the distance between the aeroplane has a submarine

there are 786 students in a school out of 38 students were absent on Monday and 58 students on Tuesday find the difference of the number of students present on the two days

(cos²x) ½=? In second quadrant

105 multiply 40 divide 7 + 6 - 1

56divide 14 multiply 3 - 10 divide 5 + 1

Heyaa guys..need help!!plz solve...

{(-5/8-1/4) - (-1/8--2/3)}

4x2+1÷4x2+2-9y2. Factorise it

2x+y=7xy/3 , x+3y=11xy/3

Tell me Q-2 plzzzz my best friend

Lcm of 255,340,765 in division method

in the xy-plan ,one of the vertices of square 's' is point (2,2). The diagonals of s intersect at the point (6,6). what is the area of 's'?

In a group of children two fifth play cricket,one fifth play badminton ,one fourth play football and remaining 30 play other games.a)how many children are there in group?b)how many play 1)cricket 2)badminton 3)football

Factorise the following :-1. x^2 + 12x + 272. y^2 + y - 1323. x^2 + 11x + 304. x^2 - 11x - 425. z^2 - 12z + 276. p^2 - 5p - 6

Please solve question 3 and 430 point

Please solve 1 and 2 question

Factorise 72 -x-x square

Please solve this 50 point

Plzz give me photo of this lcm and solve it plzz fast

Prove that the sum of angles if quadrilateral is 360

1. ax+by =a-b bx-ay=a+b

FRIENDS PLEASW ANSWER THIS QUESTION IN THE PIC

a man purchased eggs at the rate of 5 for 3 eggs and sold them at 5 eggs for Rs 12. Thus he gained Rs 143 in all find the number of eggs he bought ??

Answer in step by step

Please give answer step by step please in page answer

the length of a rectangle is 20 cm more than its breath.if the length of the rectangle is greater than 140 cm, find its minimum breath.

Raghu has enough money to buy 72 machines worth rupees 200 each how many machines can be bought , if he gets a discount of 10% on each machine ???no spam answers plzzz

1. x-y = a+b ax+by=a²-b²

if 15 workers can build a wall in 48 hours then find the number of workers required to complete the same work in 30 hours

if the weight of 8 sheets of thick paper is 40 grams how many sheets of the same paper would weight 1.5 kilograms

Solve the question 3y/5-y+2/2

find the value of x in each of the following figure if l ll m...... send me with only photo with full explanation and by using corresponding property.

Write the linear equation in two variable 1. The difference of two number is5

Y^2+4/3y^2 +7=1/2Plz solve this equation

Please answer 7th question

Please solve the problem

दो संख्याओं का योगफल उनके गुणोत्तर माध्य का 6 गुना है दिखाइए संख्या (3+2√2):(3-2√2) होगी ?

Pie chart how to do plz tell me fast ok

Pie chart how to draw

Please answer 11,12 questions.please Answer it in detailed manner

Multiple 12 x 12 x 12 suta nikliam in page