Ben & Jerry

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Ben & Jerry

by Aman verma » Fri Oct 14, 2011 10:46 pm
Q: A 'Ben & Jerry' cylindrical chocobar has its radius r unit and height h unit. If we wish to increase the volume by same unit either by increasing its radius alone or its height alone, then how many unit we have to increase the radius or height.

a) (r^2 + 2r)/h

b) (r^2 - 2r)/h

c) (2r^2 - rh)/h^2

d) (pi.r^2)/2h

e) r + h

OA[spoiler]c)[/spoiler]
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by sl750 » Fri Oct 14, 2011 10:55 pm
Hi
Is this question complete?

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by Aman verma » Sat Oct 15, 2011 10:31 pm
sl750 wrote:Hi
Is this question complete?
Yep ! The question is complete and the answer is (c) [(2r^2) - rh]/h^2. It's a geometry question.
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