If a solid sphere of radius 10 cms is moulded into 8 spherical solid balls of e

Question

If a solid sphere of radius 10 cms is moulded into 8 spherical solid balls of equal radius, then surface area of each ball (in cm2) is?

Options:

A . 100Ï€

B . 7Ï€

C . 60Ï€

D . 50Ï€

Answer: Option A

4/3 Ï€ * 10 * 10 * 10 = 8 * 4/3 Ï€r³

r
= 5

4Ï€ * 5 * 5 = 100Ï€

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