1907 + Interview Questions in Maths in Class 7

1.	Add 3x^2 and 9x^2
Answer» ANSWER :`12x^2`

Discussion

2.	Two poles stand on the ground, which their feet 24 m apart. If these poles are respectively 12 m abd 19 m in height, find the distance between their tops.
Answer» ANSWER :`25M`

Discussion

3.	Solve the equationsand check your answer in the case: (2x)/(3)+4x=42
Answer» ANSWER :X = 9

Discussion

4.	Which is greater : 2^(3) "or" 3^(2) ?
Answer» ANSWER :CLEARLY, `3^(2)GT2^(3)`

Discussion

5.	If the arithmetic mean of 5 consecutive numbers is 16, find the sum of the smallest and the largest integer.
Answer» ANSWER :32

Discussion

6.	Multiply: e. (9)/(16) xx (48)/(63)
Answer» ANSWER :`(3)/(7)`

Discussion

7.	A rectangle measures 27 cm by 16 cm. One diagonal divides the rectangle into two triangles. Find the area of each triangle.
Answer» ANSWER :216 SQ. CM

Discussion

8.	Classify into monomials, binomials and trinomials. z^2
Answer» ANSWER :MONOMIAL

Discussion

9.	An aeroplane covers a distance of 2415 km in 6 hours. How distance will it cover in 8 hours ?
Answer» ANSWER :The aeroplane will COVER 3220 km in 8 hours

Discussion

10.	Evaluate the following using properties for multiplication to simplify the multiplication. 34 times (-7)+(-34) times 6
Answer» ANSWER :-442

Discussion

11.	Find the perimeter of a rhombus whose diagonals are 30 cm and 34 cm.
Answer» ANSWER :32 CM

Discussion

12.	Fill in the boxes with lt or gt without actually finding the required product. b. i. (7)/(4) xx (2)/(5) square (7)/(4)""ii. (7)/(4) xx (2)/(5) square (2)/(5)
Answer» ANSWER :i. `LT` II. `GT`

Discussion

13.	. Find the median of the given data: 24, 19, 13, 15, 12, 36, 21, 30
Answer» `17` `18` `19` `20` ANSWER :D

Discussion

14.	By what fractionshould 9/25 be multiplied to get 7/15
Answer» ANSWER :1`22/27`

Discussion

15.	Evaluate: 20.345- 18.9099
Answer» `1.4321` `1.4351` `1.4331` `1.4301` ANSWER :B

Discussion

16.	Multiply : 8.279xx10
Answer» ANSWER :827.9

Discussion

17.	Solve : 5x - 7 = 2x+ 8
Answer» ANSWER :`X = 5`

Discussion

18.	Evaluate: a. ((2)/(5) xx (15)/(16)) - ((6)/(11) div (54)/(33))
Answer» ANSWER :`(1)/(24)`

Discussion

19.	Evaluate: 1.458 div 6
Answer» ANSWER :`0.243`

Discussion

20.	Construct a quadrilateral ABCD with AB=4 cm , BC=2.8 cm, CD=4 cm, angle=75^(@), and angleC=105^(@)
Answer» Solution :Steps: 1. DRAW a line segment AB=4 cm. 2. Draw `vec(BX)` such that `angleABX=75^(@)`. 3. With B as centre and a radius of 2.8 cm , draw an arc to cut `vec(BX)` at C. 4. Draw `vec(CY)` which makes an angle `105^(@)` with `bar(BC)`. 5. MARK D on `bar(CY)`, such that CD=4 cm. 6. Join AD. `ABCD` is the REQUIRED quadrilateral.

Discussion

21.	Find the product : 45.12 xx 3.5
Answer» ANSWER :`157.92`

Discussion

22.	Solve the equationsand check your answer in the case: (x)/(3)+(x)/(4)=14
Answer» ANSWER :X = 24

Discussion

23.	Interest earned on ₹9000 is ₹400 more than the interest earned on ₹7000. If both the sums are invested at the same rate of interest for 4 years, find the rate of interest.
Answer» ANSWER :0.05

Discussion

24.	Sakshi's car travels 16 (2)/(5) km per litre of petrol. She fills 28 (1)/(3) litres of petrol in the car. How much distance can the car cover?
Answer» `=463 (2)/(3)` km `=464 (2)/(7)` km `=464 (2)/(3)` km `=264 (2)/(3)` km Answer :C

Discussion

25.	Which central tendency has been used to arrive at the following statements?The most common height in the basketball team is 183 cm.
Answer» ANSWER :MODE

Discussion

26.	Evaluate: 20.020 xx 100
Answer» ANSWER :`2002`

Discussion

27.	Evaluate: 5.81 xx 9
Answer» ANSWER :`52.29`

Discussion

28.	A daily wage worker works for 23 days in a month. He gets Rs 400 per working day. However, his supervisor is very strict and fines him Rs 100 for each day he arrives late to work. If at the end of the 23 days, the worker has earned Rs 8000, find out the number of days he reached for work on time and the number of days he was late.
Answer» ANSWER :The worker arrives on time on 11 DAYS and it late on 12 days.

Discussion

29.	Evaluate: 0.0258 div 1000
Answer» ANSWER :`0.0000258`

Discussion

30.	Write the value of : 0.061 to the nearest tenths
Answer» ANSWER :0.1

Discussion

31.	Find the reciprocal of : c. 11
Answer» ANSWER :`1/11`

Discussion

32.	Find the perimeter and area of a rectangle having :Length = 1 m 25 cm , Breadth = 8 cm
Answer» ANSWER :`410cm,10000cm^(2)`

Discussion

33.	If we are at -7 on a number line in which direction should we move to reach: a. 1 "b."-9"c. " 5
Answer» ANSWER :a. RIGHTB. LEFTC. RIGHT

Discussion

34.	Express each of the following as a recurring decimal : 17/90
Answer» ANSWER :`0.1bar8`

Discussion

35.	Marks of 10 students in an English test are as follow, 9,10,7,11,12,6,8,14,15,18. Find. Minimum marks obtained
Answer» ANSWER :6

Discussion

36.	Find the product 2(1)/(25)xx5/(17)
Answer» ANSWER :`3/5`

Discussion

37.	Evaluate: g. (13)/(14) div 5 (4)/(7)
Answer» ANSWER :`1/6`

Discussion

38.	An insect is crawling up on a vertical wall. It crawls up 12 (5)/(7) inch. Then it slips back 3 (11)/(14) inch and then again crawls up 5 (1)/(6) inch. How far is it from the starting point?
Answer» `11 (6)/(25)` INCH `12 (2)/(21)` inch `14 (2)/(21)` inch `13 (5)/(28)` inch Answer :C

Discussion

39.	Write the following fractions as divisions. b. (343)/(100)= _________
Answer» ANSWER :`0.343`

Discussion

40.	Richard starts from home and goes 80 m due North and then 39 m due West to reach his school. How far is his school from his home ?
Answer» ANSWER :`89m`

Discussion

41.	Find the area of an isosceles triangle in which each of theequal sides measures 30 cm and the third side is 48 cm long
Answer» ANSWER :`432cm^(2)`

Discussion

42.	Convert the following decimals into like decimals : 0.72 , 53.6 , 16 , 8.304 , 2.3754
Answer» ANSWER :`0.7200,53.7600,16.0000,8.3040,2.3754`

Discussion

43.	If the circumference of a circle is 110 cm , find its radius .
Answer» `19.5` CM. `17.5` cm. `18.5` cm. `15.5` cm. Answer :B

Discussion

44.	Solve. a. (-459) times0"b. "(-8795) times 1 "c. "(-1) times 222"d. "(-83) times (-1)
Answer» ANSWER :a. 0B. -8795c. -222d. 83

Discussion

45.	Express the as indicated. One has been done for you. 18 cm as km
Answer» ANSWER :`0.02`

Discussion

46.	Find the mean proportion between : 2 . 5 and 0 . 9
Answer» ANSWER :`1.5`

Discussion

47.	ABCD is a parallelogram whose adjacent sidesAB = 48 cm and BC = 14 cm . One of its diagonds AC = 50 cm . Find : (i)the area of the parallelogram ABCD. (ii) thedistance between the longer sides. (iii) the distance between the shorter sides.
Answer» ANSWER :`=48` CM .

Discussion

48.	A car travelled from city A to city B with a uniform speed of 52 2/7km per hour. Find the 3 'distance between the two cities, if it took 43/8 hours for the car to reach city B from city A.
Answer» ANSWER :`228(3)/(4) KM`

Discussion

49.	Verify andstate the property used in each of the following. (-7) times (19+4)=[(-7) times 19]+[(-7) times 4]
Answer» ANSWER :MULTIPLICATION DISTRIBUTES over ADDITION

Discussion

50.	Find: c. (2)/(3) of 2 years
Answer» ANSWER :1 YEAR 4 MONTHS

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Add 3x^2 and 9x^2

Two poles stand on the ground, which their feet 24 m apart. If these poles are respectively 12 m abd 19 m in height, find the distance between their tops.

Solve the equationsand check your answer in the case: (2x)/(3)+4x=42

Which is greater : 2^(3) "or" 3^(2) ?

If the arithmetic mean of 5 consecutive numbers is 16, find the sum of the smallest and the largest integer.

Multiply: e. (9)/(16) xx (48)/(63)

A rectangle measures 27 cm by 16 cm. One diagonal divides the rectangle into two triangles. Find the area of each triangle.

Classify into monomials, binomials and trinomials. z^2

An aeroplane covers a distance of 2415 km in 6 hours. How distance will it cover in 8 hours ?

Evaluate the following using properties for multiplication to simplify the multiplication. 34 times (-7)+(-34) times 6

Find the perimeter of a rhombus whose diagonals are 30 cm and 34 cm.

Fill in the boxes with lt or gt without actually finding the required product. b. i. (7)/(4) xx (2)/(5) square (7)/(4)""ii. (7)/(4) xx (2)/(5) square (2)/(5)

. Find the median of the given data: 24, 19, 13, 15, 12, 36, 21, 30

By what fractionshould 9/25 be multiplied to get 7/15

Evaluate: 20.345- 18.9099

Multiply : 8.279xx10

Solve : 5x - 7 = 2x+ 8

Evaluate: a. ((2)/(5) xx (15)/(16)) - ((6)/(11) div (54)/(33))

Evaluate: 1.458 div 6

Construct a quadrilateral ABCD with AB=4 cm , BC=2.8 cm, CD=4 cm, angle=75^(@), and angleC=105^(@)

Find the product : 45.12 xx 3.5

Solve the equationsand check your answer in the case: (x)/(3)+(x)/(4)=14

Interest earned on ₹9000 is ₹400 more than the interest earned on ₹7000. If both the sums are invested at the same rate of interest for 4 years, find the rate of interest.

Sakshi's car travels 16 (2)/(5) km per litre of petrol. She fills 28 (1)/(3) litres of petrol in the car. How much distance can the car cover?

Which central tendency has been used to arrive at the following statements?The most common height in the basketball team is 183 cm.

Evaluate: 20.020 xx 100

Evaluate: 5.81 xx 9

Evaluate: 0.0258 div 1000

Write the value of : 0.061 to the nearest tenths

Find the reciprocal of : c. 11

Find the perimeter and area of a rectangle having :Length = 1 m 25 cm , Breadth = 8 cm

If we are at -7 on a number line in which direction should we move to reach: a. 1 "b."-9"c. " 5

Express each of the following as a recurring decimal : 17/90

Marks of 10 students in an English test are as follow, 9,10,7,11,12,6,8,14,15,18. Find. Minimum marks obtained

Find the product 2(1)/(25)xx5/(17)

Evaluate: g. (13)/(14) div 5 (4)/(7)

An insect is crawling up on a vertical wall. It crawls up 12 (5)/(7) inch. Then it slips back 3 (11)/(14) inch and then again crawls up 5 (1)/(6) inch. How far is it from the starting point?

Write the following fractions as divisions. b. (343)/(100)= _________

Richard starts from home and goes 80 m due North and then 39 m due West to reach his school. How far is his school from his home ?

Find the area of an isosceles triangle in which each of theequal sides measures 30 cm and the third side is 48 cm long

Convert the following decimals into like decimals : 0.72 , 53.6 , 16 , 8.304 , 2.3754

If the circumference of a circle is 110 cm , find its radius .

Solve. a. (-459) times0"b. "(-8795) times 1 "c. "(-1) times 222"d. "(-83) times (-1)

Express the as indicated. One has been done for you. 18 cm as km

Find the mean proportion between : 2 . 5 and 0 . 9

ABCD is a parallelogram whose adjacent sidesAB = 48 cm and BC = 14 cm . One of its diagonds AC = 50 cm . Find : (i)the area of the parallelogram ABCD. (ii) thedistance between the longer sides. (iii) the distance between the shorter sides.

A car travelled from city A to city B with a uniform speed of 52 2/7km per hour. Find the 3 'distance between the two cities, if it took 43/8 hours for the car to reach city B from city A.

Verify andstate the property used in each of the following. (-7) times (19+4)=[(-7) times 19]+[(-7) times 4]

Find: c. (2)/(3) of 2 years