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Re: Volume of a cylinder with a height of 10 [#permalink]
Not enough information.
Hence D
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Re: Volume of a cylinder with a height of 10 [#permalink]
Hello all,

For this question,

We have volume of cylinder = pi* r square* 10
Volume of cone= ( pi* r square *10 )/3

r cannot be zero and is always >0, then if we assume r value as 0.5 or 1, in both the cases volume of cylinder would be greater. Then I would put quantity A is greater. Can't I follow this approach? If I don't consider this assumption, then option D would be the right answer.

I took these r value assumptions because we generally test the quantitative comparison questions assuming some values for 'x' or any other variable.
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