Subject :IMO Class : Class 9

The volume of a cylinder of radius *r* is 1/4 of the volume of a rectangular box with a square base of side length *x*. If the cylinder and the box have equal heights, what is the value of *r* in terms of *x*?

A

B

C

D

Both option B and D have the same answer, which is correct. I ticked D and website says B.