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SSC CGL 2020 PYQ — Question 84

SSC CGL Tier II - Quant - 18 Nov 2020 • Quantitative Aptitude • Q84

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If the surface area of a sphere is 1386 cm2, then its volume is:

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Correct answer: B

Explanation

The correct answer is option 2 i.e. 4851 cm3

4π\pir2 = 1386

r2 = 110.25

r = 10.5 cm.

Volume of the sphere = 4/3 × π\pir3 = 4/3 × 22/7 × 10.5 × 10.5 × 10.5 

= 4851 cm3