Question Paper from: SSC CGL Tier-1 (Shift-1) 1

Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?

1:
12
2:
14
3:
16
4:
28
Solution:
Chapter Name: Mensuration

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SSC CGL Tier-1 (Shift-1) 1

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