CBSE Class 10 Maths (Standard) 2015 · Paper 30/2/1 · Question 18
A metallic cylinder has radius 3 cm and height 5 cm. To reduce its weight, a conical hole is drilled in the cylinder. The conical hole has a radius of cm and its depth is cm. Calculate the ratio of the volume of metal left in the cylinder to the volume of metal taken out in conical shape.
Answer
The ratio of metal left to metal taken out is .
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