A. 8 cm

**B. 12 cm**

C. 14 cm

D. 10 cm

# Volumes

## A wooden box of dimensions 8m x 7m x 6m is to carry rectangular boxes of dimensions 8cm x 7cm x 6cm. The maximum number of boxes that can be carried in 1 wooden box is?

A. 1200000

**B. 1000000**

C. 9800000

D. 7500000

## If the height of a cone is increased by 100% then its volume is increased by_________?

**A. 100%**

B. 200%

C. 300%

D. 400%

## The height of two right circular cones are in the ratio 1:2 and their perimeters of their bases are in the ratio 3:4, the ratio of their volume is_________?

A. 3:8

B. 9:16

**C. 9:32**

D. 9:64

## The edges of a cuboid are 4 cm, 5 cm and 6 cm. Find the volume of the cuboid?

A. 120 cm^{3}

**B. 120 cm ^{2}**

C. 148 cm

^{2}

D. 15 cm

^{3}

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## The radius of a cylinder is 2 r units and height is 3 r units. Find the curved surface?

A. 18 πr^{2} sq units

B. 3 πr^{2} sq units

**C. 12 πr ^{2} sq units**

D. 6 πr

^{2}sq units

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## Find the ratio between whole surfaces of a sphere and a hemisphere?

A. 3:4

**B. 4:3**

C. 3:1

D. 1:3

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## Find the ratio of the curved surfaces of two cylinders of same heights if their radii are in the ratio 1:2.

**A. 1:2**

B. 2:1

C. 1:4

D. 4:1

## The edge of a cube is 2a cm. Find its surface?

A. 6a^{2} cm^{2}

B. 8a^{2} cm^{2}

C. 12a^{2} cm^{2}

**D. 24a ^{2} cm^{2}**

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## If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm^{2}, then length breadth and height in cms, are respectively?

A. 90, 85, 60

B. 85, 75, 60

C. 90, 75, 70

**D. 90, 75,60**

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