Q. You are given four salt solutions W, X, Y and Z of different concentrations. W is a 20% salt solution, X is a 35% salt solution, Y is a 10% salt solution whereas Z is a 50% salt solution. When a solid suspended from the hook of a spring balance is fully submerged in all these salt solutions, one by one, then the spring balance will show the minimum reading when the solid is immersed in :
(1) solution W
(2) solution X
(3) solution Y
(4) solution Z