P, Q, R starts a business with capital in the ratio 1 : 2 : 3 and their investment time periods is in the ratio 3 : 2 : 1. The ratio of their profits is:

1 : 2 : 3 3 : 2 : 1 3 : 4 : 3 1 : 1 : 1

3 : 4 : 3

The correct answer is Option (3) → 3 : 4 : 3