Question
The Volumes of the two spheres are in the ratio 64:125.
Their surface area will be in the ratio.Solution
V1/V2 = (S1/S2)3/2 S1/S2 = (V1/V2)2/3 = (64/125)2/3 = (4/5)3×2/3 S1: S2  = 16:25
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