A solid metallic sphere of radius 15 cm is melted and recast into spherical ball – OfficerPath

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MCQ Practice

A solid metallic sphere of radius 15 cm is melted and recast into spherical balls of radius 3 cm each. What is the ratio of the surface area of the original sphere and the sum of the surface areas of all balls?

Subject: MathematicsTopic: Mensuration 3D

A

1 : 5

B

5 : 27

C

1 : 10

D

3 : 40

Correct Answer: A

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