1907 + Interview Questions in Maths in Class 7

1.	Convert the as directed 12 hectare into sq. m
Answer» ANSWER :`20.000 SQ. m `

Discussion

2.	Find the product 5/6xx3/7
Answer» ANSWER :`5/14`

Discussion

3.	Find the area of the triangle whose sides are 13 cm , 20 cm and 21cm . Also find the height of the triangle correspondingto the largest side .
Answer» ANSWER :`126CM^(2),12CM`

Discussion

4.	Find the product : 0.079 xx 10.20 xx 2.1
Answer» ANSWER :`1.69218`

Discussion

5.	Evaluate: 0.2 xx 10
Answer» ANSWER :`2`

Discussion

6.	Convert the as directed 1000 sq. m into sq. cm
Answer» ANSWER :`10 XX 10 ^(6) sq.m`

Discussion

7.	Express the as indicated. One has been done for you. 135 mm as cm
Answer» ANSWER :`0.455`

Discussion

8.	Evaluate: -1855 div (-53)
Answer» ANSWER :35

Discussion

9.	Express each of the following rational number in exponential form (256)/(625)
Answer» ANSWER :`((4)/(5))^(4)`

Discussion

10.	Express each of the following ratios in simplest form : 2 (1)/(3) : 3 (1)/( 4) : 1 (1)/(6)
Answer» ANSWER :`28 : 39 : 14`

Discussion

11.	Evaluate: 7 times 1
Answer» ANSWER :7

Discussion

12.	A number when divided by 3 (45)/(49) gives (7)/(24). Find number.
Answer» ANSWER :`1 (1)/(7)`

Discussion

13.	Express each of the following rational number in exponential form ( -1)/(512)
Answer» ANSWER :` ((-1)/(2))^(9)`

Discussion

14.	A hall is 16m long and 12 m braod .Find the cost of carpeting it at Rs. 615 per m^(2) afterleaving a margin of 1 metre all around .
Answer» ANSWER :RS. 86100

Discussion

15.	Convert each of the following fractions into a decimal : 2(9)/16
Answer» ANSWER :2.5625

Discussion

16.	Solve and verify the solution obtained in each of thefollowing equations. 2p-3= 23
Answer» ANSWER :13

Discussion

17.	Evaluate: e. (4)/(9) div (5)/(6)
Answer» ANSWER :`8/15`

Discussion

18.	Find the quotient. 0.0025 div 1000
Answer» ANSWER :`0.0000025`

Discussion

19.	A rectangular lown 76 m long and 54 m broad has two cross - roads ,one 1.5 m wide running parallel to its length and the other 2 m wide , runningparallel to its breadth. Find the cost of constructing these roads at Rs. 216 per m^(2).
Answer» ANSWER :RS. 47304.

Discussion

20.	Fill in the blanks 150 mL = "________"L
Answer» ANSWER :`0.15 L`

Discussion

21.	Solve: ((5x-3))/6-((2x-1))/3=((4-3x))/2
Answer» ANSWER :`X = 13/10`

Discussion

22.	Evaluate: (1)/(2) div (1)/(4)
Answer» ANSWER :`=2`.

Discussion

23.	Six more than seven times a number is 34. Find the number.
Answer» ANSWER :4

Discussion

24.	Find the measure of the angles of a triangle which has one of its exterior angles of 120^(@) and the two interior opposite angles in the ratio 1:2.
Answer» ANSWER :`60^(@),40^(@),80^(@)`.

Discussion

25.	Solve the equationsand check your answer in the case: x-24% of x=38
Answer» ANSWER :X = 50

Discussion

26.	Multiply th 2.4242 xx 1000
Answer» ANSWER :`2424.2`

Discussion

27.	Find the time in which the simple interest on a sum of money will be 0.125 times the principal at 10% per annum.
Answer» ANSWER :`1.25 YEARS

Discussion

28.	Findthe perimeters of :A rectangle of length 12 cm and breadth 7.5 cm .
Answer» ANSWER :39 CM

Discussion

29.	Amit buys chocolates worth Rs. 97 (1)/(2). If one chocolate costs Rs. 9 (3)/(4), how many chocolates did he buy?
Answer» ANSWER :10 CHOCOLATES

Discussion

30.	Divide: e. (4)/(8) div (9)/(24)
Answer» ANSWER :`1 (1)/(3)`

Discussion

31.	Divide:(i) 12 by 8(ii) 63 by 15(iii) 47 by 20(iv) 101 by 25 (v) 31 by 40 (vi) 11 by 16
Answer» Answer :(i)1.5, (ii)4.2, (iii)2.35,(IV) 4.04, (V)0.775, (VI)0.6875

Discussion

32.	Divide : 0.9 div100
Answer» ANSWER :0.009

Discussion

33.	Express each of the following ratios in simplest form : 2.1 : 1.2
Answer» ANSWER :`7 : 4 `

Discussion

34.	Solve : x/3-x/5=x/2-22
Answer» ANSWER :X = 60

Discussion

35.	Find the reciprocal of : e. (22)/(7)
Answer» ANSWER :`7/22`

Discussion

36.	Evaluate: (-12) times (-4) times (-1)
Answer» ANSWER :-48

Discussion

37.	A car travels 2831/2 km in 42/3 hours. How far does this car go in 1 hour, travelling at the samespeed?
Answer» ANSWER :60`3/4 KM`

Discussion

38.	Divide: a. (7)/(9) div 14
Answer» ANSWER :`(1)/(18)`

Discussion

39.	Evaluate the following. -63-(-74)
Answer» ANSWER :11

Discussion

40.	A rectangular scarf measures 90 cm by 80 cm. Two friends cut it across one of the diagonals and thus each has a triangular scarf. Find the ara of each trianglar scarf.
Answer» ANSWER :`14.08` CM

Discussion

41.	Evaluate: 1.188 div 11
Answer» ANSWER :`0.108`

Discussion

42.	What fraction is 1 kg 440 g of 2 kg 400 g?
Answer» ANSWER :`(3)/(5)`

Discussion

43.	A test contains 10 true/false questions. A correct answer is awarded 2 marks, a wrong answer -1 and a question not answered is awarded 0. A student attempts 7 questions and gets 8 marks. How many questions did the student answer correctly?
Answer» ANSWER :5

Discussion

44.	Evaluate: 476 times (-253)
Answer» ANSWER :-120428

Discussion

45.	Evaluate: 12.45 div 20
Answer» ANSWER :`0.6225`

Discussion

46.	Evaluate: (-32 +8) div (-3+6)
Answer» `-8` `8` `-7` `7` ANSWER :A

Discussion

47.	Find the mean weight of 40 boys from the following data : {:("Weight (in kg)",27,28,29,30,31),("Number of boys",6,12,10,8,4),("(Frequency)",,,,,):}
Answer» ANSWER :28.8 KG

Discussion

48.	A varies directly with B when C is constant and inverselywith C when B is constant. A=6, when B= 2 and C = 3. What is the value of A, when B=3 and C= 18?
Answer» `(1)/(2)` `(5)/(2)` `(3)/(2)` `(7)/(2)` Solution :`"Given", A alpha B"" (1) ("C is constant.")` `A prop (1)/(C) "" (2) ("B is constant.")` From Eqs (1) and (2), we get `A = (KB)/(C)," where " K " is constant".` `(AC)/(B) = K` (i) A = 6, B = 2, and C = 3 `THEREFORE K = (6 xx 3)/(2) = 9` (ii) A = ?, B = 3, and C = 18 `(A xx 18)/(3) = 9` `RARR A = (3)/(2)` Hence, the CORRECT option is (c).

Discussion

49.	A graphic designer charges Rs 27 3/5 for each diagram. Find the amount he will charge if he designs 186 diagrams for a book.
Answer» ANSWER :`5133(3)/(5)`

Discussion

50.	Which of the following has a definite length? bar(AB)
Answer» ANSWER :YES

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Convert the as directed 12 hectare into sq. m

Find the product 5/6xx3/7

Find the area of the triangle whose sides are 13 cm , 20 cm and 21cm . Also find the height of the triangle correspondingto the largest side .

Find the product : 0.079 xx 10.20 xx 2.1

Evaluate: 0.2 xx 10

Convert the as directed 1000 sq. m into sq. cm

Express the as indicated. One has been done for you. 135 mm as cm

Evaluate: -1855 div (-53)

Express each of the following rational number in exponential form (256)/(625)

Express each of the following ratios in simplest form : 2 (1)/(3) : 3 (1)/( 4) : 1 (1)/(6)

Evaluate: 7 times 1

A number when divided by 3 (45)/(49) gives (7)/(24). Find number.

Express each of the following rational number in exponential form ( -1)/(512)

A hall is 16m long and 12 m braod .Find the cost of carpeting it at Rs. 615 per m^(2) afterleaving a margin of 1 metre all around .

Convert each of the following fractions into a decimal : 2(9)/16

Solve and verify the solution obtained in each of thefollowing equations. 2p-3= 23

Evaluate: e. (4)/(9) div (5)/(6)

Find the quotient. 0.0025 div 1000

A rectangular lown 76 m long and 54 m broad has two cross - roads ,one 1.5 m wide running parallel to its length and the other 2 m wide , runningparallel to its breadth. Find the cost of constructing these roads at Rs. 216 per m^(2).

Fill in the blanks 150 mL = "________"L

Solve: ((5x-3))/6-((2x-1))/3=((4-3x))/2

Evaluate: (1)/(2) div (1)/(4)

Six more than seven times a number is 34. Find the number.

Find the measure of the angles of a triangle which has one of its exterior angles of 120^(@) and the two interior opposite angles in the ratio 1:2.

Solve the equationsand check your answer in the case: x-24% of x=38

Multiply th 2.4242 xx 1000

Find the time in which the simple interest on a sum of money will be 0.125 times the principal at 10% per annum.

Findthe perimeters of :A rectangle of length 12 cm and breadth 7.5 cm .

Amit buys chocolates worth Rs. 97 (1)/(2). If one chocolate costs Rs. 9 (3)/(4), how many chocolates did he buy?

Divide: e. (4)/(8) div (9)/(24)

Divide:(i) 12 by 8(ii) 63 by 15(iii) 47 by 20(iv) 101 by 25 (v) 31 by 40 (vi) 11 by 16

Divide : 0.9 div100

Express each of the following ratios in simplest form : 2.1 : 1.2

Solve : x/3-x/5=x/2-22

Find the reciprocal of : e. (22)/(7)

Evaluate: (-12) times (-4) times (-1)

A car travels 2831/2 km in 42/3 hours. How far does this car go in 1 hour, travelling at the samespeed?

Divide: a. (7)/(9) div 14

Evaluate the following. -63-(-74)

A rectangular scarf measures 90 cm by 80 cm. Two friends cut it across one of the diagonals and thus each has a triangular scarf. Find the ara of each trianglar scarf.

Evaluate: 1.188 div 11

What fraction is 1 kg 440 g of 2 kg 400 g?

A test contains 10 true/false questions. A correct answer is awarded 2 marks, a wrong answer -1 and a question not answered is awarded 0. A student attempts 7 questions and gets 8 marks. How many questions did the student answer correctly?

Evaluate: 476 times (-253)

Evaluate: 12.45 div 20

Evaluate: (-32 +8) div (-3+6)

Find the mean weight of 40 boys from the following data : {:("Weight (in kg)",27,28,29,30,31),("Number of boys",6,12,10,8,4),("(Frequency)",,,,,):}

A varies directly with B when C is constant and inverselywith C when B is constant. A=6, when B= 2 and C = 3. What is the value of A, when B=3 and C= 18?

A graphic designer charges Rs 27 3/5 for each diagram. Find the amount he will charge if he designs 186 diagrams for a book.

Which of the following has a definite length? bar(AB)