1907 + Interview Questions in Maths in Class 7

1.	Observe the bar graph given below : Read the bar graph carefully and answer the following questions : On which day of the week was the sale maximum?
Answer» ANSWER :FRIDAY

Discussion

2.	A sum of money amounts to ₹14,880 in 6 years and to ₹16,320 in 9 years. Find the sum of money and the rate of interest.
Answer» ANSWER :₹ 12,000 ; 4%

Discussion

3.	Identify like terms in the following: -2xy^(2), x^(2)y, 5y^(2)x, x^(2)z
Answer» SOLUTION :N/A

Discussion

4.	Find: a. (3)/(5) of 4 kg
Answer» ANSWER :2 KG 400 G

Discussion

5.	Subtract: 2x^(2)-5x-3 from 4+x-3x^(2).
Answer» SOLUTION :N/A

Discussion

6.	Find the mode of the following data: 23,29,41,48,25,28,47
Answer» ANSWER :No MODE

Discussion

7.	By actual division, express of the following as a terminating decimal: 5/16
Answer» ANSWER :0.3125

Discussion

8.	What is the difference between 68.5 and 0.685 ?
Answer» ANSWER :67.815

Discussion

9.	Find the product 1/10xx91xx5(11)/(13
Answer» ANSWER :`28`

Discussion

10.	Identify which of the following expressions are polynomials. If so, write their degrees. 5x^(2)-(2)/(x)+7
Answer» SOLUTION :N/A

Discussion

11.	Compare the fractions: b. (7)/(9) square (13)/(15)
Answer» ANSWER :`LT`

Discussion

12.	Express the as indicated. One has been done for you. 20 mm as km
Answer» ANSWER :`0.455`

Discussion

13.	Convert each of the following fractions into a decimal : 19/10
Answer» ANSWER :1.9

Discussion

14.	At what rate per cent will a sum of money double itself in 6 years ?
Answer» ANSWER :`16(2)/3%`

Discussion

15.	Evaluate: a. (-12) times (-15)"b. "(-24) times (-37)
Answer» ANSWER :a. 180 B. 888

Discussion

16.	Fill in the blanks : 11/30 = ........
Answer» ANSWER :`0.3bar(6)`

Discussion

17.	A bookshop sells books in two types of packing, one small and one large. A large pack contains as many as 10 small packs plus 5 loose books. Set up an equation which gives the number of books in each small pack. The number of books in a large pack is 115.
Answer» ANSWER :`10 X + 5 = 115`

Discussion

18.	A number increased by 9 gives 43. Find the number.
Answer» ANSWER :34

Discussion

19.	Find the area of a right triangle whose hypotenuse measures 17 cm and one of the other two sides 8cm .
Answer» `=65 CM^(2)`. `=50 cm^(2)`. `=60 cm^(2)`. `=70 cm^(2)`. Answer :C

Discussion

20.	Solve: 0.4(a+1.4)=0.72
Answer» ANSWER :X = 0.4

Discussion

21.	If x=2a^(2)+3b^(2)-5ab, y=b^(2)-3a^(2)+7ab and z=6a^(2)-b^(2)+ab, find: x-y+z
Answer» SOLUTION :N/A

Discussion

22.	If x=2a^(2)+3b^(2)-5ab, y=b^(2)-3a^(2)+7ab and z=6a^(2)-b^(2)+ab, find: x+y-z
Answer» SOLUTION :N/A

Discussion

23.	PQRS is a parallelogram with ST perpendicular to PQ. Given area of Delta PST = 54 sq.cm, QS = 13 cm, and TQ = 5 cm, find the perimeter of the parallelogram.
Answer» ANSWER :260sq. CM

Discussion

24.	Solve: 2x-[3x-((2x-5))/8]=2x-9/4
Answer» ANSWER :`X = 23/22`

Discussion

25.	Write as mixed fraction: a. (24)/(5)
Answer» ANSWER :`4 (4)/(5)`

Discussion

26.	Write 345.7896 in standard form.
Answer» ANSWER :`3.457896xx10^(2)`

Discussion

27.	Classify into monomials, binomials and trinomials. 1+x+5
Answer» ANSWER :BINOMIAL

Discussion

28.	Which of the following geometrical figureshas exactly one line of symmetry ?
Answer» A RECTANGLE A SEMICIRCLE A REGULAR PENTAGON A RHOMBUS

Discussion

29.	What fraction is 3 L 150 mL of 7 L 350 mL?
Answer» `(9)/(7)` `(3)/(7)` `(8)/(7)` `(3)/(2)` ANSWER :B

Discussion

30.	Multiply : 7.8xx100
Answer» ANSWER :780

Discussion

31.	Express 6/7 as a decimal , correct to 2 decimal places.
Answer» ANSWER :0.86

Discussion

32.	Solve: ((7)/(12) xx (6)/(35)) - ((1)/(2) div (5)/(6) )
Answer» ANSWER :`= - (1)/(2)`

Discussion

33.	Three negative integers and one positive integer are multiplied. Find the sign of the product.
Answer» POSITIVE integer negative integer cannot be determined none of the above Answer :B

Discussion

34.	A certain sum was lent at R% per annum at compound interest for 2 years. In which of the following cases would it fetch the maximum interest ?
Answer» INTEREST is calculated annually. Interest is calculated semi-annually. Interest is calculated quarterly. Interest is calculated three TIMES a year. Solution :When interest is calculated more number of times, it FETCHES more interest. `therefore` Chocie (C ) follows.

Discussion

35.	Find: (21)/(4) xx (30)/(49) + (5)/(7)
Answer» ANSWER :`= 3 (13)/(14)`

Discussion

36.	Sudha is four times as old as Rita. After 12 years, Sudha will be twice as old as Rita. Find their present ages.
Answer» ANSWER :24 YEARS , 6 years

Discussion

37.	Solve the following equations and verify the results. 2(y-2)+3(4y-1)=0
Answer» ANSWER :`y=1/2`

Discussion

38.	Construct a quadrilateral ABCD in which AB=4.2 cm , angle=80^(@),BC=2.4 cm, CD=3.3 cm, and AD=2.4 cm.
Answer» Solution :Steps: 1. Draw a line segment AB=4.2 cm. 2. Draw `angleBAX=80^(@)` 3. Mark D on `vec(AX)`, such that AD=2.4 cm. 4. TAKING D as the centre and 3.3 cm as the radius, draw an arc and taking 'B' as the centre and 2.4 cm as radius, draw another arc to INTERSECT the previous arc at C. 5. Join CD and BC. ABCD is the required quadrilateral.

Discussion

39.	State whether true or false. -9-(-2)=-11
Answer» ANSWER :F

Discussion

40.	Convert the as direct. 10 sq. km into sq. m
Answer» ANSWER :`RS 2,12.120`

Discussion

41.	Multiply : 5.4xx1000
Answer» ANSWER :5400

Discussion

42.	Express the numbers appearing in the following statements in standard form.a) speed of light in vacuum is 3,00,000,000 m/s
Answer» ANSWER :a. `1.989xx10^(30)` KG b. `4.5xx10^(9) "YEARS"`

Discussion

43.	Divide : 134.2 div1000
Answer» ANSWER :0.1342

Discussion

44.	Findthe perimeters of :A square having each side of length 4.5 cm.
Answer» ANSWER :18 CM

Discussion

45.	Evaluate: 15. 848 div 40
Answer» ANSWER :`0.3962`

Discussion

46.	Two equal sides of a triangle are each 5 metres less than twice the third side. If the perimeter ofthe triangle is 55 meters, find the lengths of its sides.
Answer» ANSWER :13 m, 21 m, 21 m

Discussion

47.	A certainn freezing process requires that room temperature be lowered from 40^(@)C at a rate of 5^(@)C at every hour. Find the room temperature 10 hours after the freezing process begins.
Answer» ANSWER :`-10^(@)C`

Discussion

48.	The perimeter of a square plot of land is 144 metres . Findits area.
Answer» `=1286 m^(2)` `=1296 m^(2)` `=1276 m^(2)` `=1206 m^(2)` ANSWER :C

Discussion

49.	Express each of the following ratios in simplest form : 60 cm : 1m
Answer» ANSWER :`3 : 5 `

Discussion

50.	A road roller has wheels of radius 70 cm. It has to work on an 88 km road. How many revolutions of the wheel will be required for the road roller to cover the entire length of the road once? Take pi = (22)/(7).
Answer» ANSWER :`108 CM`

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Observe the bar graph given below : Read the bar graph carefully and answer the following questions : On which day of the week was the sale maximum?

A sum of money amounts to ₹14,880 in 6 years and to ₹16,320 in 9 years. Find the sum of money and the rate of interest.

Identify like terms in the following: -2xy^(2), x^(2)y, 5y^(2)x, x^(2)z

Find: a. (3)/(5) of 4 kg

Subtract: 2x^(2)-5x-3 from 4+x-3x^(2).

Find the mode of the following data: 23,29,41,48,25,28,47

By actual division, express of the following as a terminating decimal: 5/16

What is the difference between 68.5 and 0.685 ?

Find the product 1/10xx91xx5(11)/(13

Identify which of the following expressions are polynomials. If so, write their degrees. 5x^(2)-(2)/(x)+7

Compare the fractions: b. (7)/(9) square (13)/(15)

Express the as indicated. One has been done for you. 20 mm as km

Convert each of the following fractions into a decimal : 19/10

At what rate per cent will a sum of money double itself in 6 years ?

Evaluate: a. (-12) times (-15)"b. "(-24) times (-37)

Fill in the blanks : 11/30 = ........

A bookshop sells books in two types of packing, one small and one large. A large pack contains as many as 10 small packs plus 5 loose books. Set up an equation which gives the number of books in each small pack. The number of books in a large pack is 115.

A number increased by 9 gives 43. Find the number.

Find the area of a right triangle whose hypotenuse measures 17 cm and one of the other two sides 8cm .

Solve: 0.4(a+1.4)=0.72

If x=2a^(2)+3b^(2)-5ab, y=b^(2)-3a^(2)+7ab and z=6a^(2)-b^(2)+ab, find: x-y+z

If x=2a^(2)+3b^(2)-5ab, y=b^(2)-3a^(2)+7ab and z=6a^(2)-b^(2)+ab, find: x+y-z

PQRS is a parallelogram with ST perpendicular to PQ. Given area of Delta PST = 54 sq.cm, QS = 13 cm, and TQ = 5 cm, find the perimeter of the parallelogram.

Solve: 2x-[3x-((2x-5))/8]=2x-9/4

Write as mixed fraction: a. (24)/(5)

Write 345.7896 in standard form.

Classify into monomials, binomials and trinomials. 1+x+5

Which of the following geometrical figureshas exactly one line of symmetry ?

What fraction is 3 L 150 mL of 7 L 350 mL?

Multiply : 7.8xx100

Express 6/7 as a decimal , correct to 2 decimal places.

Solve: ((7)/(12) xx (6)/(35)) - ((1)/(2) div (5)/(6) )

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

A certain sum was lent at R% per annum at compound interest for 2 years. In which of the following cases would it fetch the maximum interest ?

Find: (21)/(4) xx (30)/(49) + (5)/(7)

Sudha is four times as old as Rita. After 12 years, Sudha will be twice as old as Rita. Find their present ages.

Solve the following equations and verify the results. 2(y-2)+3(4y-1)=0

Construct a quadrilateral ABCD in which AB=4.2 cm , angle=80^(@),BC=2.4 cm, CD=3.3 cm, and AD=2.4 cm.

State whether true or false. -9-(-2)=-11

Convert the as direct. 10 sq. km into sq. m

Multiply : 5.4xx1000

Express the numbers appearing in the following statements in standard form.a) speed of light in vacuum is 3,00,000,000 m/s

Divide : 134.2 div1000

Findthe perimeters of :A square having each side of length 4.5 cm.

Evaluate: 15. 848 div 40

Two equal sides of a triangle are each 5 metres less than twice the third side. If the perimeter ofthe triangle is 55 meters, find the lengths of its sides.

A certainn freezing process requires that room temperature be lowered from 40^(@)C at a rate of 5^(@)C at every hour. Find the room temperature 10 hours after the freezing process begins.

The perimeter of a square plot of land is 144 metres . Findits area.

Express each of the following ratios in simplest form : 60 cm : 1m

A road roller has wheels of radius 70 cm. It has to work on an 88 km road. How many revolutions of the wheel will be required for the road roller to cover the entire length of the road once? Take pi = (22)/(7).