The Old profit sharing ratio among Radha, Sonu and Tara was 2:2:1. The new profit sharing ratio after Sonu's retirement is 3:2. What will be the gaining ratio?

1:1

The correct answer is option 3- 1:1.

Gaining ratio = New ratio- Old ratio

Radha's gain = 3/5-2/5
                     = (3-2)/5
                     = 1/5

Tara's gain = 2/5-1/5
                  = (2-1)/5
                  = 1/5

Gaining ratio = 1/5: 1/5
                     = 1:1