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The number of coins, each of radius 0.75...

The number of coins, each of radius 0.75 cm and thickness 0.2 cm, to be melted to make a right circular cylinder of height 8 cm and base radius 3 cm is

A

460

B

500

C

600

D

640

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Verified by Experts

The correct Answer is:
D
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MTG IIT JEE FOUNDATION-MENSURATION-Exercise (Multiple Choice Questions) LEVEL-1
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  2. The ratio of the radius and height of a cylinder is 2:3. If its volume...

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  3. The number of coins, each of radius 0.75 cm and thickness 0.2 cm, to ...

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  4. The length of a room is 5.5 m and width is 3.75 m. Find the cost of...

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  5. The length of a rectangle is 18 cm and its breadth is 10 cm. When t...

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  6. A rectangular plot measuring 90 metres by 50 metres is to be enclos...

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  7. The length of a rectangular plot is 60% more than its breadth. If t...

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  8. A rectangular parking space is marked out by painting three of its ...

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  9. The difference between the length and breadth of a rectangle is 23 m. ...

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  10. The length of a rectangular plot is 20 metres more than its breadth...

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  11. The capacity of a tank of dimensions (8 m xx 6 m xx 2.5 m) is

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  12. Find the surface area of a 10 cm xx 4 cm xx 3 cm brick.

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  13. Find the surface area of a cuboid 16 m long, 14 m broad and 7 m high.

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  14. The diagonal of a cube is 6 sqrt3 cm. Find its volume.

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  15. Find the total surface area of a cylinder with diameter of base 7 cm a...

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  16. The edges of a cuboid are in the ratio 1 : 2 : 3 and its surface area ...

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  17. The side of a cube is halved. By what percent will its surface area de...

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  18. An open cylindrical tank is of radius 2.8 m and height 3.5 m. What is ...

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  19. The length of the longest rod that can be put in a box of dimensions 1...

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  20. What is the area of the region of the circle which is situated outside...

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