Lead spheres of diameter 6 cm each are dropped into a cylinderical beaker containing some water and are fully submerged. If the diameter of the beaker is 18 cm and water level rises up to 40 cm, find the number of lead spheres dropped into water.

We have radius of cylinder(R)= 9 cm

Height of cylinder(H) = 40 cm

Radius of Sphere(r) = 3 cm


  • 22
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