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Small spherical balls of radius 0.7cm are dropped into a cylindrical c

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| Small spherical balls of radius 0.7cm are dropped into a cylindrical container of diameter 7cm, which contains some water. Find the number of spherical balls that should be dropped in to the container, so that water level rises by 5.6 cm.

A. 130

B. 240

C. 150

D. 250

Right Answer is: C

SOLUTION

Radius of small spherical balls = 0.7 cm

Diameter of cylindrical container = 7 cm

Radius of cylindrical container =  cm

Let number of spherical balls that dropped into a cylindrical container =k

Volume of k spherical balls that are dropped = Volume of cylindrical container up to 5.6 cm

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    1. Small spherical balls of radius 0.7cm are dropped into a cylindrical c

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