Solution:Amount invested by A = Rs.20000
Amount invested by B = Rs.24000
Ratio of the amount invested by A to that by B
20000 : 24000 = 5 : 6
Time period of the investment of A = 12 months
Time period of the investment of B = 10 months
Ratio of the time period of the investment of A to that by B = 12 : 10 = 6 : 5
⇒ ratio of the profit earned by A to that by B = (5 × 6) : (6 × 5) = 30 : 30 = 1 : 1