If A invests Tk 5,000 for 12 months and B invests Tk 6,000 for 10 months, what is the ratio of their profits?

Question: If A invests Tk 5,000 for 12 months and B invests Tk 6,000 for 10 months, what is the ratio of their profits?

Solution:
We know, profit = (investment × time)
A has a profit of 5,000 × 12 = 60,000
B has a profit of 6,000 × 10 = 60,000
∴ So ratio of A's profit to B's profit = 60,000 : 60,000 = 1 : 1