Q. 255.0( 2 Votes )
A spherical ball
Given: Radius of big ball = 3 cm
Radius of first ball = 1.5 cm
Radius of second ball = 2 cm
To find: Diameter of the third ball
The volume of the sphere =
radius of big ball = 3 cm
So, its volume, v =
The spherical ball of radius 3 cm is melted and recast into three spherical balls.
Let the radius of the third ball be r.
Then, volume of third spherical ball =
Volume of first ball =
Volume of second ball =
The volume of the original spherical ball is equal to that of the total volumes of the three balls.
⇒ r = 2.5 cm
Thus, diameter = 5 cm
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