Question : An inverted conical–shaped vessel is filled with water to its brim. The height of the vessel is 8 cm and the radius of the open end is 5 cm. When a few solid spherical metallic balls each of radius
Option 1: 100
Option 2: 400
Option 3: 200
Option 4: 150
Correct Answer: 100
Solution :
Given: Height of the vessel = 8 cm
Radius = 5 cm.
Volume of the conical vessel =
=
=
The volume of 25% of water =
The volume of the spherical metallic ball of the radius
The number of balls required =
Hence, the correct answer is 100.
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