Some lead spheres, each of diameter 6 cm, are dropped into a beaker containing some water and are fully submerged. The diameter of the beaker is 18 cm. Calculate, the number of lead spheres dropped into it, if the water level rises by 40 cm.
Mensuration
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Question

Some lead spheres, each of diameter 6 cm, are dropped into a beaker containing some water and are fully submerged. The diameter of the beaker is 18 cm. Calculate, the number of lead spheres dropped into it, if the water level rises by 40 cm.

Mensuration

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KnowledgeBoat · Accepted Answer

Given, Diameter of lead spheres = 6 cm Radius, r = = 3 cm Diameter of beaker = 18 cm Radius of beaker, R = = 9 cm Increase in water level, h = 40 cm Let n spheres are dropped. ∴ Volume of water increased in beaker = n × Volume of one sphere Hence, the number of lead spheres dropped into the beaker are 90.

Mathematics

Some lead spheres, each of diameter 6 cm, are dropped into a beaker containing some water and are fully submerged. The diameter of the beaker is 18 cm. Calculate, the number of lead spheres dropped into it, if the water level rises by 40 cm.

Mensuration

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