SSC CPO SI and ASI Model Paper 8

Question : 108 of 200

Marks: +1, -0

A spherical ball having a radius 24 cm is melted and drawn into a wire. If the radius of the cross section of the wire is 32 cm, then the length of the wire is

12 cm
18 cm
32 cm
16 cm

Validate

Solution:

(2) Let L be the length of the wire.According to the question,
Volume of ball = Volume of wire

⇒4 /3×π ×24 ×24× 24

=π ×32 ×32 ×L

⇒L = 18 cm

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