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How many lead balls each of radius 1 cm each be made from a sphere whose radius is 8 cm?

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KALYANI PUBLICATION-Surface Area and Volume-EXERCISE
  1. A solid is in the form of a right-circular cone mounted on a hemispher...

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  2. A cylindrical tub of radius 5 cm and length 9.8 cm is full of water. A...

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  3. How many lead balls each of radius 1 cm each be made from a sphere who...

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  4. A right circular cone is 3.6 cm high and the radius of its base is 1.6...

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  5. The diameter of sphere is 42 cm. If it is melted and drawn into cylind...

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  6. A solid metallic sphere of diameter 21 cm is melted and recast into a ...

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  7. A hemispherical bowl of radius 9 cm is full of liquid. The liquid is ...

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  8. A conical vessel whose radius is 5 cm and height is 24 cm, is full of ...

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  9. The rain water from a roof 22 m xx 20 m drains into a cylindrical vess...

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  10. A solid cylinder of diameter 12 cm and height 15 cm is melted and reca...

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  11. How many silver coins 1.75 cm in diameter and of thickness 2 mm must b...

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

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  13. A cylindrical bucket 32 m high and 18 cm of radius of base, is filled ...

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  14. The internal and external radii of a hollow sphere are 3 cm and 5 cm r...

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  15. From a solid cylinder whose height 8 cm and radius 6 cm, a conical cav...

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  16. There is an agriculture field in the form of rectangle of length of 20...

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  17. Water flows through a circular pipe whose internal diameter is 2 cm at...

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  18. Water is flowing at the rate of 15 km/h through a pipe of diameter 14 ...

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  19. A farmer connects a pipe of internal diameter 20cm from a canal into a...

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  20. If the radii of the circular ends of a conical bucket of height 45 cm ...

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