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Find the number of coins, 1.5 cm in d...

Find the number of coins, 1.5 cm in diameter and 0.2 cm thick, to be melted to form a right circular cylinder of height 10 cm and diameter 4.5 cm.

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RD SHARMA-SURFACE AREAS AND VOLUMES-All Questions
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  2. The dimensions of a metallic cuboid are: 100\ c mxx80xx64\ c m . It...

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  3. Find the number of coins, 1.5 cm in diameter and 0.2 cm thick, to b...

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  4. A glass cylinder with diameter 20 cm has water to a height of 9 cm....

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  5. 2.2 cubic dm of brass is to be drawn into a cylindrical wire 0.50 c...

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  6. A well with 10 m inside diameter is dug 14 m deep. Earth taken out ...

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  7. A 20 m deep well with diameter 7 m is dug and the earth from diggin...

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  8. A well, whose diameter is 7m, has been dug 22.5 m deep and the earth d...

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  9. Water is being pumped out through a circular pipe whose internal di...

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  10. water is flowing at the rate of 2.52 km/h through a cylindrical pipe i...

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  11. Water is flowing at the rate of 5 km/hour through a pipe of diameter 1...

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  12. The rain water from a roof of 22\ mxx20\ m drains into a cylindr...

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  13. Water in a canal, 30\ d m\ w i d e\ a n d\ 12 d m\ d e e p ,\ is f...

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  14. A hemispherical tank of radius 1.75 m is full of water. It is conne...

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  15. The barrel of a fountain pen, cylindrical in shape, is 7 cm long and 5...

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  16. The cost of painting the total outside surface of a closed cylindri...

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  17. A copper wire, 3 mm in diameter, is wound about a cylinder whose le...

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  18. A copper wire, 3 mm in diameter, is wound about a cylinder whose le...

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  19. The radii of the internal and external surfaces of a metallic spher...

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  20. The largest sphere is carved out of a cube of a side 7 cm. Find the...

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