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Quantitative Aptitude (MPPCS)

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A copper sphere of diameter 12 cm is drawn into a wire of diameter 8 mm. Find the length of the wire.

1400 cm

1800 cm

1500 cm

none of these

Explanation:

Here 4/3 πR³ = πr²h
where R is the radius of sphere,
r is the radius of the wire and h is the length of the wire.
Hence 4/3 (12/2)³ = (.8/2)² h
So h =1800cm.

By: MIRZA SADDAM HUSSAIN

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