1907 + Interview Questions in Maths in Class 7

1.	Express each of the following ratios in simplest form : 35 paise : ₹ 1
Answer» ANSWER :`7 : 20`

Discussion

2.	Solve the equationsand check your answer in the case: (2x+3)/(3+x)=(3)/(2)
Answer» ANSWER :X = 3

Discussion

3.	Find the mode in each of the following data collection., 14, 14, 14, 16, 17, 18, 18, 18, 20, 22, 22, 22, 25, 28, 28, 30
Answer» ANSWER :14,18,22

Discussion

4.	Sujay eats 2 (2)/(3) packets of cookies in a day. How many packets of cookies will he eat in 17 (1)/(2) days?
Answer» `= 86 (2)/(3)` `= 46 (2)/(9)` `= 49 (2)/(3)` `= 46 (2)/(3)` ANSWER :D

Discussion

5.	Three numbers a,b, and c form a Phythagorean triplet. If a=29, b=21, find c if c is the shortest of the three numbers.
Answer» ANSWER :c=20.

Discussion

6.	The mean of 12 numbers is 10. If one more number is added, the mean remains unaltered. Find the number that is added.
Answer» ANSWER :10

Discussion

7.	Convert each of the following fractions into a decimal : 37/40
Answer» ANSWER :0.925

Discussion

8.	Find the reciprocal of 31/3
Answer» ANSWER :`3/10`

Discussion

9.	The sides AB and AC of ABC have been produced to D and E reapectively. The bisectors of /_CBD and /_BCE meet at O. If /_A=50^(@), find /_BOC.
Answer» ANSWER :`65^(@)`

Discussion

10.	Evaluate: 8.192 xx 13
Answer» ANSWER :`106.496`

Discussion

11.	Madhav and Daksh bought 4 litres of orange juice. Madhav drank (2)/(5) of the juice and Daksh finished the rest. How many litres of juice did Daksh drink?
Answer» ANSWER :2 LITRES and 400 MILLILITERS

Discussion

12.	Divide : 0.12749 div 61
Answer» ANSWER :0.00209

Discussion

13.	Find the area of the triangle ,having :base =9.5 cm , height = 6 mm
Answer» ANSWER :`2.85 CM^(2)`

Discussion

14.	Express the as indicated. One has been done for you. 455 mg as g
Answer» ANSWER :`13.5`

Discussion

15.	Evaluate: 326.7564- 305.06
Answer» `21.6064` `21.6932` `21.6922` `21.6964` ANSWER :D

Discussion

16.	Evaluate: 44-(34-40)-[(27-32)-6]
Answer» ANSWER :61

Discussion

17.	Convert : 35000m^(2) to hectares
Answer» ANSWER :`=3.5` HECTARES.

Discussion

18.	Find the area and the height of an equilateral triangle whose each side measures : 6.4 m (Take sqrt(3)=1.73 in each case )
Answer» ANSWER :`17.7152m^(2)`

Discussion

19.	Evaluate : a. (-1)^(7) b. (-1)^(10) c. (-3)^(3)xx(-2)^(2) d. (-3)^(4)
Answer» ANSWER :a. `=-1` B. `=1` C. `=-27xx4=-108` d. `=81`

Discussion

20.	Findthe value of x in each of the following : 42 : 12 : : 7 : x
Answer» ANSWER :X = 2

Discussion

21.	2 (5)/(4) - 4 (7)/(6) + 3 (1)/(3)
Answer» ANSWER :`= 1 (5)/(12)`

Discussion

22.	What will be the sign of the product if we multiply: (-1) thirteen times?
Answer» ANSWER :NEGATIVE

Discussion

23.	Divide: h. (11)/(13) div 1 (1)/(26)
Answer» ANSWER :`(22)/(27)`

Discussion

24.	A cyclist is moving at a speed of 20 km/h for 20 minutes. By how much should he increase his speed if he needs to cover the same distance in 15 minutes?
Answer» ANSWER :`(20)/3 km//h`

Discussion

25.	Findthe value of x in each of the following : 16 : x : : x : 25
Answer» ANSWER :X = 20

Discussion

26.	Fill in lt or gt sign in the boxes without actually carrying out the multiplication. i.(11)/(3) xx (6)/(5) square (11)/(3)""(11)/(3) xx (6)/(5) square (6)/(5)
Answer» ANSWER :`i. GT II. gt`

Discussion

27.	How much is x^(3)-3x^(2)+5x-2 less than 3-2x+x^(2)-x^(3)?
Answer» SOLUTION :N/A

Discussion

28.	By actual division, express of the followingrational numbers as a repeating decimal. 13/11
Answer» ANSWER :`1.bar(18)`

Discussion

29.	Find the value of x when 3 (1)/(2) : x : : 2 (1)/(2) : 4
Answer» ANSWER :`X = 5 (3)/(5)`

Discussion

30.	What length of rope is required, if 6 rounds of rope are needed to put around the fence of a circular track of radius 490 m.
Answer» ANSWER :3 TIMES

Discussion

31.	Evaluate 8. 56 div 4
Answer» ANSWER :`2.14`

Discussion

32.	Subtract: 3a+4b-2c from 6a-2b+3c.
Answer» SOLUTION :N/A

Discussion

33.	The ratio of the radii of two circles is 2:3. Find the ratio of their circumference.
Answer» ANSWER :`20.00`

Discussion

34.	The perimeter of a triangle is 8+13a+7a^(2) and two of its sides are 2a^(2)+3a+2 and 3a^(2)-4a-1. Find the third side of the triangle.
Answer» SOLUTION :N/A

Discussion

35.	A uniform iron bar of length7 m weight22.4 kg. How much does the samebar of length 13 m weight?
Answer» ANSWER :41 . 6 KG

Discussion

36.	Amit is 21 years younger than Surbhi. After nine years,their ages will be in the ratio 4:3, find their ages.
Answer» ANSWER :54 YEARS , 75 years

Discussion

37.	Solve: x/5+3=(x)/6+12
Answer» ANSWER :X = 270

Discussion

38.	Express each of the following as fraction is simplest form : 12.725
Answer» ANSWER :`12(29)/40`

Discussion

39.	One supplementary angle is 20^@more than the other. Find the two angles.
Answer» ANSWER :`80^@ and 100^@`

Discussion

40.	Find the area of the triangle ,having :base = 5.6 m , heigth = 3.5 m
Answer» ANSWER :`9.8m^(2)`

Discussion

41.	Multiply : 2.73 xx 4.56
Answer» ANSWER :`12.4488`

Discussion

42.	Find: ((121)/(24) xx (4)/(11) ) div (35)/(3)
Answer» ANSWER :`= (11)/(70)`

Discussion

43.	If a =4, b = -5, c = -8, find the value of (a+b) times c.
Answer» ANSWER :8

Discussion

44.	By actual division, express of the following as a terminating decimal: 31/40
Answer» ANSWER :0.775

Discussion

45.	Evaluate: 14.7 + 0.84 div 0.3 - 2.4 xx 1.2 + 15.8
Answer» ANSWER :`30.42`

Discussion

46.	Evaluate: 7.12 xx 7
Answer» ANSWER :`49.84`

Discussion

47.	The weight of grain in one store is twice that in the other. If 750 tonnes of grain from the first store and 350 tonnes of grain from the second store are taken out , the weight of grain in both the stores will be the same. Find the weight of grain in each store.
Answer» ANSWER :400 TONNES.

Discussion

48.	Divide : 78.48 div12
Answer» ANSWER :6.54

Discussion

49.	Observe the bar graph given below : Read the bar graph carefully and answer the following questions : On which day of the week there was maximum increase in sale compared to the previous day?
Answer» ANSWER :25

Discussion

50.	Evaluate: 7-[3-5(4+7)+4{14 div (35 div 5)}]
Answer» ANSWER :51

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Express each of the following ratios in simplest form : 35 paise : ₹ 1

Solve the equationsand check your answer in the case: (2x+3)/(3+x)=(3)/(2)

Find the mode in each of the following data collection., 14, 14, 14, 16, 17, 18, 18, 18, 20, 22, 22, 22, 25, 28, 28, 30

Sujay eats 2 (2)/(3) packets of cookies in a day. How many packets of cookies will he eat in 17 (1)/(2) days?

Three numbers a,b, and c form a Phythagorean triplet. If a=29, b=21, find c if c is the shortest of the three numbers.

The mean of 12 numbers is 10. If one more number is added, the mean remains unaltered. Find the number that is added.

Convert each of the following fractions into a decimal : 37/40

Find the reciprocal of 31/3

The sides AB and AC of ABC have been produced to D and E reapectively. The bisectors of /_CBD and /_BCE meet at O. If /_A=50^(@), find /_BOC.

Evaluate: 8.192 xx 13

Madhav and Daksh bought 4 litres of orange juice. Madhav drank (2)/(5) of the juice and Daksh finished the rest. How many litres of juice did Daksh drink?

Divide : 0.12749 div 61

Find the area of the triangle ,having :base =9.5 cm , height = 6 mm

Express the as indicated. One has been done for you. 455 mg as g

Evaluate: 326.7564- 305.06

Evaluate: 44-(34-40)-[(27-32)-6]

Convert : 35000m^(2) to hectares

Find the area and the height of an equilateral triangle whose each side measures : 6.4 m (Take sqrt(3)=1.73 in each case )

Evaluate : a. (-1)^(7) b. (-1)^(10) c. (-3)^(3)xx(-2)^(2) d. (-3)^(4)

Findthe value of x in each of the following : 42 : 12 : : 7 : x

2 (5)/(4) - 4 (7)/(6) + 3 (1)/(3)

What will be the sign of the product if we multiply: (-1) thirteen times?

Divide: h. (11)/(13) div 1 (1)/(26)

A cyclist is moving at a speed of 20 km/h for 20 minutes. By how much should he increase his speed if he needs to cover the same distance in 15 minutes?

Findthe value of x in each of the following : 16 : x : : x : 25

Fill in lt or gt sign in the boxes without actually carrying out the multiplication. i.(11)/(3) xx (6)/(5) square (11)/(3)""(11)/(3) xx (6)/(5) square (6)/(5)

How much is x^(3)-3x^(2)+5x-2 less than 3-2x+x^(2)-x^(3)?

By actual division, express of the followingrational numbers as a repeating decimal. 13/11

Find the value of x when 3 (1)/(2) : x : : 2 (1)/(2) : 4

What length of rope is required, if 6 rounds of rope are needed to put around the fence of a circular track of radius 490 m.

Evaluate 8. 56 div 4

Subtract: 3a+4b-2c from 6a-2b+3c.

The ratio of the radii of two circles is 2:3. Find the ratio of their circumference.

The perimeter of a triangle is 8+13a+7a^(2) and two of its sides are 2a^(2)+3a+2 and 3a^(2)-4a-1. Find the third side of the triangle.

A uniform iron bar of length7 m weight22.4 kg. How much does the samebar of length 13 m weight?

Amit is 21 years younger than Surbhi. After nine years,their ages will be in the ratio 4:3, find their ages.

Solve: x/5+3=(x)/6+12

Express each of the following as fraction is simplest form : 12.725

One supplementary angle is 20^@more than the other. Find the two angles.

Find the area of the triangle ,having :base = 5.6 m , heigth = 3.5 m

Multiply : 2.73 xx 4.56

Find: ((121)/(24) xx (4)/(11) ) div (35)/(3)

If a =4, b = -5, c = -8, find the value of (a+b) times c.

By actual division, express of the following as a terminating decimal: 31/40

Evaluate: 14.7 + 0.84 div 0.3 - 2.4 xx 1.2 + 15.8

Evaluate: 7.12 xx 7

The weight of grain in one store is twice that in the other. If 750 tonnes of grain from the first store and 350 tonnes of grain from the second store are taken out , the weight of grain in both the stores will be the same. Find the weight of grain in each store.

Divide : 78.48 div12

Observe the bar graph given below : Read the bar graph carefully and answer the following questions : On which day of the week there was maximum increase in sale compared to the previous day?

Evaluate: 7-[3-5(4+7)+4{14 div (35 div 5)}]