What is the minimum volume of a block of wood(density `=850kg//m^(3))` if it is to hold a `50 kg` woman entirely above the water when she stands on it?

Answer

C

Explanation

Weight of both(block+woman)
=upthrust on 100% volume of block
`:. 50g+V(850)g=V(1000)g`
`:. V=0.33m^(3)`.