1907 + Interview Questions in Maths in Class 7

1.	Evaluate the following using properties for multiplication to simplify the multiplication. (-59) times 102
Answer» ANSWER :-6018

Discussion

2.	Find the product : 1.2xx3.5xx0.3
Answer» ANSWER :1.26

Discussion

3.	A wire is bentin the form of a square of side 16.5 cm . Itis straightened and then bent into a circle. Whatis the radius of the circle so formed ? (Take pi=(22)/(7))
Answer» 16.5 cm 11.5 cm 10.5 cm 12.5 cm Answer :C

Discussion

4.	Evaluate: 315. 9 div 9
Answer» ANSWER :`35.1`

Discussion

5.	Solve the following equations and verify the results. 2/9(x+3)=4x-7
Answer» ANSWER :`X = 69/34`

Discussion

6.	Evaluate: 0.6526 div 52
Answer» ANSWER :`0.01255`

Discussion

7.	The mean of 5 consecutive multiples of 7 is 28. Find the sum of 2nd and 3rd numbers.
Answer» ANSWER :49

Discussion

8.	Round of to the nearest whole number : 87.65
Answer» ANSWER :88

Discussion

9.	A number exceeds 20% of itself by 40. Find the number.
Answer» ANSWER :50

Discussion

10.	Convert : 2.5m^(2) "to " mm^(2)
Answer» ANSWER :`=2500000 MM^(2)`.

Discussion

11.	Evaluate: b. 5 (5)/(11) - 1 (5)/(12) - 2 (7)/( 24)
Answer» ANSWER :`1 (17)/(24)`

Discussion

12.	After 9 games, the mean number of goals scored by a football team is 3.If after one more game they score no goals, what is the new mean value of goals scored?
Answer» ANSWER :2.7

Discussion

13.	A given number is trebled to get a second number. This number is also trebled to get a third number. The sum of these three numbers is 12 more than 12 times the original number. Find the original number. 8.
Answer» ANSWER :12

Discussion

14.	The total weight of 27 boxes of sweets is 20 (1)/(4) kg. If each box weighs the same, find the weight of each box.
Answer» ANSWER :`=750` G

Discussion

15.	Convert each of the following into a vulgar fraction : 2.bar(13)
Answer» ANSWER :`2(13)/99`

Discussion

16.	Two angles of a triangle are 58^(@) and 44^(@). Find the third angle.
Answer» `89^(@)` `68^(@)` `76^(@)` `78^(@)` ANSWER :D

Discussion

17.	Evaluate: d. ((5)/(3) xx (9)/(20)) - ((7)/(9) div (28)/(15))
Answer» ANSWER :`1/3`

Discussion

18.	Evaluate: e. 3 (5)/(8) xx (24)/(25)
Answer» ANSWER :`3 (12)/(25)`

Discussion

19.	Express each of the following ratios in simplest form : (1)/(8) : (1)/(12)
Answer» ANSWER :`3 : 2`

Discussion

20.	Evaluate: b. 4 div (16)/(21)
Answer» ANSWER :`5 (1)/(4)`

Discussion

21.	Simplify : 100-32.5 - 46.74 - 12.925
Answer» ANSWER :7.835

Discussion

22.	Multiply th 0.00065 xx 1000
Answer» ANSWER :`0.65`

Discussion

23.	Find the sum of : 64.85 , 23.9 , 146.58 , 0.7 and 25
Answer» ANSWER :the REQUIRED SUM is 261.03

Discussion

24.	Two negative integers and one positive integer are being multiplied. Find the sign of the product.
Answer» POSITIVE integer negative integer cannot be determined none of the above Answer :A

Discussion

25.	Evaluate the 42.21 div 2.1
Answer» ANSWER :`20.1`

Discussion

26.	Which of the following geometrical figures has exactly two lines of symmetry ?(i) A square(ii) A parallelogram(iii) An isosceles trapezium(iv) A rectangle
Answer» A square A parallelogram An ISOSCELES TRAPEZIUM A RECTANGLE

Discussion

27.	Evaluate : 2^(10)-:2^(3)
Answer» ANSWER :`=2^(7)`

Discussion

28.	Evaluate: 0.32 xx 11
Answer» ANSWER :`11.352`

Discussion

29.	Which of the following statements are true and which of them are false? (i) All squares are congruent. (ii) If two squares have equal areas, they are congruent. (iii) If two figures have equal areas, they are congruent. (iv) If two triangles are equal in area, they are congruent. (v) If two sides and one angle of a triangle are equal to the corresponding two sides and angle of another triangle, the triangles are congruent.(vi) If two angles and any side of a triangle are equal to the corresponding angles and the side of another triangle then the triangles are congruent.(vii) If three angles of a triangle are equal to the corresponding angles of another triangle then the triangles are congruent.(viii) If the hypotenuse and an acute angle of a right triangle are equal to the hypotenuse and the corresponding acute angle of another right triangle then the triangles are congruent.(ix) If the hypotenuse of a right triangle is equal to the hypotenuse of another right triangle then the triangles are congruent.
Answer» Answer :(i)FALSE (ii)FALSE (III)FALSE (iv)FALSE (v)FALSE (vi)TRUE (VII)FALSE (viii)TRUE (IX)FALSE

Discussion

30.	Solve: (3y)/4-2/7=3/2+y/3
Answer» ANSWER :`y = 30/7`

Discussion

31.	What should be subtracted from 2p^2+3q^2 +6pq to get p^2-q^2 ?
Answer» ANSWER :`p^2-q^2`

Discussion

32.	Find the products : 6.83 xx10
Answer» ANSWER :68.3.

Discussion

33.	How many equal pieces , each of length 3.6 cm can be cut from a rope of length 61.2 cm ?
Answer» ANSWER :17

Discussion

34.	Two pipes P_(1) " and " P_(2) can filla tank in 8 h and 5 h, respectively. They are opened together, after an hour, pipe P_(2) is closed, in how many more hours will the tank be filled?
Answer» `(27)/(5)h` `(27)/(2)h` `(23)/(5)h` `(28)/(5)h` Solution :In 1 h, 1/8 + 1/5 = (13/40)th of the tank gets FILLED. `therefore1-(13)/(40) = (27)/(40)` part of the tank is still empty. `THEREFORE (27)/(40)` part of the tank can be filled in= `(8 XX 27)/(40) = (27)/(5)`h. Hence, the correct option is (a).

Discussion

35.	A car moves at a speed of 57 (3)/(4) km/hr. The car travels for 3 hours 20 minutes. Find the distance covered by the car.
Answer» Answer :`192 (1)/(2)` KM = 192 km 500 m

Discussion

36.	Find: c. 5 (7)/(9) xx 6
Answer» ANSWER :`= 34 (2)/(3)`

Discussion

37.	The sides of a triangleare in the ratio13: 14: 15and its perimeter is 84 cm .Find the area of the triangle .
Answer» ANSWER :`336cm^(2)`

Discussion

38.	A small card is in the shape of an isosceles triangle with a semicircle on its base. If the diameter of the semicircle is 6 cm, and the hright of the triangle is 3 cm, find the area of the card.
Answer» ANSWER :`23.14 sq.cm`

Discussion

39.	A sum of money lent out at simple interest amounts to ₹2880 in 2 years and to ₹3600 in 5 years. Find the sum of money and the rate of interest.
Answer» ANSWER :₹2400;10 %

Discussion

40.	Multiply th 3.76 xx 10
Answer» ANSWER :`37.6`

Discussion

41.	Find the reciprocal of 125 1/8
Answer» ANSWER :`8/1001`

Discussion

42.	State whether true or false. 7-(-3)=7-3
Answer» ANSWER :F

Discussion

43.	State whether true or false. 7-(-3)=7+3
Answer» ANSWER :T

Discussion

44.	One banana costs Rs. 5 (3)/(4). How many bananas can be bought for Rs. 97 (3)/(4)?
Answer» ANSWER :17 BANANAS

Discussion

45.	Preeti selects a dress material costing Rs. 35(1)/(2) per metre. She needs 5 m of the material. How much does she have to pay?
Answer» ANSWER :RS. `177 (1)/(2)`

Discussion

46.	Evaluate: -444div 37
Answer» ANSWER :-12

Discussion

47.	Evaluate: 4.71 xx 9
Answer» ANSWER :`42.39`

Discussion

48.	Find the reciprocal of : d. 4 (5)/(8)
Answer» ANSWER :`8/37`

Discussion

49.	A wire is in the shape of a square of side 15 m. If it is opened and shaped as a rectangle of width 12 m, find its length.
Answer» ANSWER :18 m

Discussion

50.	Divide 9 4/5 div3 (23)/(25)
Answer» ANSWER :2`1/2`

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Evaluate the following using properties for multiplication to simplify the multiplication. (-59) times 102

Find the product : 1.2xx3.5xx0.3

A wire is bentin the form of a square of side 16.5 cm . Itis straightened and then bent into a circle. Whatis the radius of the circle so formed ? (Take pi=(22)/(7))

Evaluate: 315. 9 div 9

Solve the following equations and verify the results. 2/9(x+3)=4x-7

Evaluate: 0.6526 div 52

The mean of 5 consecutive multiples of 7 is 28. Find the sum of 2nd and 3rd numbers.

Round of to the nearest whole number : 87.65

A number exceeds 20% of itself by 40. Find the number.

Convert : 2.5m^(2) "to " mm^(2)

Evaluate: b. 5 (5)/(11) - 1 (5)/(12) - 2 (7)/( 24)

After 9 games, the mean number of goals scored by a football team is 3.If after one more game they score no goals, what is the new mean value of goals scored?

A given number is trebled to get a second number. This number is also trebled to get a third number. The sum of these three numbers is 12 more than 12 times the original number. Find the original number. 8.

The total weight of 27 boxes of sweets is 20 (1)/(4) kg. If each box weighs the same, find the weight of each box.

Convert each of the following into a vulgar fraction : 2.bar(13)

Two angles of a triangle are 58^(@) and 44^(@). Find the third angle.

Evaluate: d. ((5)/(3) xx (9)/(20)) - ((7)/(9) div (28)/(15))

Evaluate: e. 3 (5)/(8) xx (24)/(25)

Express each of the following ratios in simplest form : (1)/(8) : (1)/(12)

Evaluate: b. 4 div (16)/(21)

Simplify : 100-32.5 - 46.74 - 12.925

Multiply th 0.00065 xx 1000

Find the sum of : 64.85 , 23.9 , 146.58 , 0.7 and 25

Two negative integers and one positive integer are being multiplied. Find the sign of the product.

Evaluate the 42.21 div 2.1

Which of the following geometrical figures has exactly two lines of symmetry ?(i) A square(ii) A parallelogram(iii) An isosceles trapezium(iv) A rectangle

Evaluate : 2^(10)-:2^(3)

Evaluate: 0.32 xx 11

Solve: (3y)/4-2/7=3/2+y/3

What should be subtracted from 2p^2+3q^2 +6pq to get p^2-q^2 ?

Find the products : 6.83 xx10

How many equal pieces , each of length 3.6 cm can be cut from a rope of length 61.2 cm ?

Two pipes P_(1) " and " P_(2) can filla tank in 8 h and 5 h, respectively. They are opened together, after an hour, pipe P_(2) is closed, in how many more hours will the tank be filled?

A car moves at a speed of 57 (3)/(4) km/hr. The car travels for 3 hours 20 minutes. Find the distance covered by the car.

Find: c. 5 (7)/(9) xx 6

The sides of a triangleare in the ratio13: 14: 15and its perimeter is 84 cm .Find the area of the triangle .

A small card is in the shape of an isosceles triangle with a semicircle on its base. If the diameter of the semicircle is 6 cm, and the hright of the triangle is 3 cm, find the area of the card.

A sum of money lent out at simple interest amounts to ₹2880 in 2 years and to ₹3600 in 5 years. Find the sum of money and the rate of interest.

Multiply th 3.76 xx 10

Find the reciprocal of 125 1/8

State whether true or false. 7-(-3)=7-3

State whether true or false. 7-(-3)=7+3

One banana costs Rs. 5 (3)/(4). How many bananas can be bought for Rs. 97 (3)/(4)?

Preeti selects a dress material costing Rs. 35(1)/(2) per metre. She needs 5 m of the material. How much does she have to pay?

Evaluate: -444div 37

Evaluate: 4.71 xx 9

Find the reciprocal of : d. 4 (5)/(8)

A wire is in the shape of a square of side 15 m. If it is opened and shaped as a rectangle of width 12 m, find its length.

Divide 9 4/5 div3 (23)/(25)