Latest TCS Aptitude Question SOLUTION: A hollow spherical met allic ball has an exter nal diameter 6 cm and is 1/2c m thic k. The volume of met al(in cm ) used in the ball is : 3 (a) 37 (b) 40 (c) 41 (d) 47

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A hollow spherical met allic ball has an exter nal diameter 6 cm and is 1/2c m thic k.
The volume of met al(in cm
) used in the ball is :
3
(a) 37 (b) 40 (c) 41 (d) 47

Asked In TCS vishnupriya.O (11 years ago)

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sainath  (11 years ago)

thickness of ball is 1/2 cm means internal radius=3-0.5=2.5 cm
the volume of ball is =total volume-internal volume
=4/3*(pi)*(3^3)-4/3*(pi)*(2.5^3)
=4/3*(pi)*(3^3-2.5^3)
=4/3*(pi)*(27-15.625)
=4/3*(22/7)*(11.735)
=4/3*(22)*(1.625)
=143/3=47.6
so approximately the value is (d)....

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