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A solid metallic sphere of diameter 21 c...

A solid metallic sphere of diameter 21 cm is melted and recast into a number of smaller cones, each of diameter 3.5 cm and height 3 cm. Find the number of cones so formed.

A

405

B

540

C

504

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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