SOLUTION: The radii of the base of two cylindrical tins, P and Q are r and 2r, respectively. If the water level in P is 10cm high, what would be the height of the same quantity of water in Q

Question 890452: The radii of the base of two cylindrical tins, P and Q are r and 2r, respectively. If the water level in P is 10cm high, what would be the height of the same quantity of water in Q?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
For a cylinder, the volume is,

So,

and

Since the volumes are the same,

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