Book Maths Puzzle

What is the ratio between the volumes of a cylinder and cone of the same height and of the same diameter?

Read Solution (Total 1)

Book Other Question

If the radius of base and height of a cone are increased by 10%, find the percentage of increase of its volume. In a symposium of 400 people, it was observed that 200 write with Reynolds, 70 with Parker and 50 with Paper mate pens. 30 people had both Reynolds and Parker. 20 had Reynolds and Paper mate and 8 had Parker and Paper mate. How many had Reynolds alone?