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## MCQ Questions for Class 8 Mathematics with Answers

## Q1. Surface area of a cuboid = *__*

*__*

(i) 2 h (l + b)

(ii) 2lbh

(iii) 2(lb + bh + hl)

(iv) None of these

(iii) 2(lb + bh + hl)

## Q2. The area of a rectangle of length a and breadth b is

(i) a + b

(ii) ab

(iii) a² + b²

(iv) 2ab.

(ii) ab

## Q3. The area of a rhombus is 70 cm². One diagonal is 14 cm. The other diagonal is

(i) 20 cm

(ii) 10 cm

(iii) 5 cm

(iv) 15 cm

(ii) 10 cm

## Q4. Find the volume of a cuboid whose length is 8 cm, breadth 6 cm and height 3.5 cm.

(i) 215 cm³

(ii) 172 cm³

(iii) 150 cm³

(iv) 168 cm³

(iv) 168 cm³

## Q5. If a coin is flipped in the air, what is the probability of getting a tail?

(i) 0

(ii) ½

(iii) 1

(iv) 2

(ii) ½

## Q6. Two dimensional figure is a

(i) solid figure

(ii) plane figure

(iii) cylinder figure

(iv) None of these

(ii) plane figure

## Q7. The area of a square of side a is

(i)a

(ii) a²

(iii) 2a

(iv) 4a.

(ii) a²

## Q8. The area of a rhombus is 60 cm² and one diagonal is 10 cm. The other diagonal is

(i) 6 cm

(ii) 12 cm

(iii) 3 cm

(iv) 24 cm

(ii) 12 cm

## Q9. The area of a trapezium is

(i) 1/2 (sum of parallel sides) × h

(ii) 2 (sum of parallel sides) × h

(iii) (sum of parallel sides) × h

(iv) 1/2 (sum of parallel sides) + h

(i) 1/2 (sum of parallel sides) × h

## Q10. If a die is thrown in air, the probability of getting even numbers is:

(i) ½

(ii) ⅙

(iii) ⅓

(iv) ⅔

(ii) ⅙

## Q11. The formula for finding lateral surface area of cylinder is

(i) 2πrh

(ii) πr²

(iii) 2πr(r+h)

(iv) 2πr

(i) 2πrh

## Q12. 1 mm³ =

(i) 0.001 cm³

(ii) 0.01 cm³

(iii) 0.1 cm³

(iv) 1000 cm³

(i) 0.001 cm³

## Q13. The height of two right circular cylinders are the same. Their volume’s are respectively 16 π m³ and 81 π m³. The ratio of their base radius is

(i) 16 : 81

(ii) 9 : 14

(iii) 2 : 3

(iv) 4 : 9

(iv) 4 : 9

## Q14. Solid figures are

(i) 2 D

(ii) 3 D

(iii) 1 D

(iv) 4 D

(ii) 3 D

## Q15. Double bar graphs display **__** sets of data simultaneously.

(i) Four

(ii) Three

(iii) Two

(iv) No

(iii) Two

## Q16. Find the volume of a cuboid whose length is 8 cm, breadth 6 cm and height 3.5 cm.

(i) 168 cm³

(ii) 168 cm³

(iii) 215 cm³

(iv) 150 cm³

(ii) 168 cm³

## Q17. The total surface area of a cylinder of base radius r and height h is

(i) 2πr (r + h)

(ii) πr (r + h)

(iii) 2πrh

(iv) 2πr².

(i) 2πr (r + h)

## Q18. If base area of a room is 30 m² and height is 3 m then its volume is

(i) 900 m³

(ii) 90 m³

(iii) 33 m³

(iv) 33 m³

(ii) 90 m³

## Q19. Two dimensional figure is a

(i) solid figure

(ii) plane figure

(iii) cylinder figure

(iv) None of these

(ii) plane figure

## Q20. In grouped data, each of the group is called:

(i) Class interval

(ii) Collection of data

(iii) Frequency

(iv) Grouped frequency distribution

(i) Class interval

## Q21. Diagonals of rhombus are

(i) equal

(ii) half of one diagonal

(iii) of different length

(iv) none of above

(iii) of different length

## Q22. 1 L =

(i) 10 cm³

(ii) 100 cm³

(iii) 1000 cm³

(iv) 10000 cm³.

(iii) 1000 cm³

## Q23. If the edge of a cube is 1cm then which of the following is its volume?

(i) 6 m³

(ii) 3 m³

(iii) 1 m³

(iv) none of these

(iii) 1 m³

## Q24. The amount of space occupied by a three dimensional objects is called its

(i) area

(ii) surface area

(iii) volume

(iv) lateral surface area

(iii) volume

## Q25. The difference between the upper class limit and lower class limit of a class interval is called:

(i) Frequency

(ii) Width

(iii) Grouped data

(iv) Ungrouped data

(ii) Width

## Q26. Find the total surface area of a cube whose volume is 343 cm³.

(i) 350 cm²

(ii) 294 cm²

(iii) 494 cm²

(iv) 200 cm²

(ii) 294 cm²

## Q27. The volume of a room is 80 m³. The area of the floor is 20 m². The height of the room is

(i) 1 m

(ii) 2 m

(iii) 3 m

(iv) 4 m.

(iv) 4 m

## Q28. Diagonals of rhombus are

(i) equal

(ii) half of one diagonal

(iii) of different length

(iv) none of above

(iii) of different length

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