CBSE Class 10 Maths (Standard) 2015 · Paper 30/1/1 · Question 31
Water is flowing at the rate of km/h through a cylindrical pipe into a cylindrical tank, the radius of whose base is cm. If the increase in the level of water in the tank, in half an hour is m, find the internal diameter of the pipe.
Answer
The internal diameter of the pipe is cm.
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