# Chapter 13 Surface Areas and Volumes- MCQ Online Test 2 Class 9 Maths

1. The total surface area of a cube is 96cm2.
(a) 68 cm3
(b) 60 cm3
(c) 64 cm3
(d) 65 cm3

2. If the outer diameter of a pipe 21 m long is 1 m, then its curved surface area is
(a) 56 m2
(b) 60m2
(c) 62 m2
(d) 66 m2

3. A cube of side 4 cm contains a sphere touching its sides. Find the approximate volume of the gap in between.
(a) 30.48 cm3
(b) 35.18 cm3
(c) 33.40 cm3
(d) 38.41 cm3

4. The cost of digging a pit of dimensions 4.5m×2.5m×2.5m at the rate of Rs 20 per cubic metre is
(a) Rs 565
(b) Rs 562.50.
(c) Rs 563.59
(d) Rs 560.25

5. If the volume of a sphere is 4851 cm3, then its surface area is
(a) 1398 cm2
(b) 1386 cm2
(c) 1305 cm2
(d) 1374 cm2

6. The lateral surface area of a cube is 256 m2 The volume of the cube is
(a) 314 m3
(b) 512 m3.
(c) 729 m3.
(d) 64 m3.

7. The cost of cementing the inner curved surface of a 14 m deep well of radius 2 m at the rate of Rs 2 per m2 is
(a) Rs 360
(b) Rs 352
(c) Rs 358
(d) Rs 365

8. The ratio of the radii of two spheres whose volumes are in the ratio 64 : 27 is
(a) it is 16 : 9
(b) it is 4 : 3
(c) it is 4 : 5
(d) it is 9 : 8

9. The volume of resulting cuboid formed when two cubes each of side 6 cm are joined end to end is
(a) 435 cm3
(b) 420 cm3
(c) 432 cm3
(d) 412 cm3

10. A hemispherical bowl is made of steel 0.25 cm thick. If the inner radius of the bowl is 3.25 cm, then the outer curved surface area of the bowl is
(a) 90 cm2
(b) 77 cm2
(c) 71 cm2
(d) 81 cm2

## Class 9 Surface Area and Volumes Quiz -2

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