Q14 of 189 Page 492

A cylindrical bucket, 28 cm in diameter and 72 cm high, is full of water. The water is emptied into a rectangular tank, 66 cm long and 28 cm wide. Find the height of the water level in the tank.

Given,


Diameter of cylindrical bucket = 28 cm


Radius of bucket =


Height of bucket = 72 cm


Volume of water in bucket = πr2h =


Length of rectangular tank = 66 cm


Width of tank = 28 cm


Let rise in water level in rectangular tank = h cm


∵ Volume of cylinder = Volume of rectangular tank


= 66 × 28 × h


⇒ h =


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