Correct Answer  Option 1 : 75 : 80 : 6
Given:
A invested = Rs. 500000 for 12 months
B invested = Rs. 800000 for 8 months
C invested = Rs. 80000 for 6 months
Formula:
Ratio of Profit = ratios of product of Amount invested and time
Calculation:
Person

A

B

C

Amount

500000

800000

80000

Time

12

8

6

Required ratio = 50 × 12 ∶ 80 × 8 ∶ 8 × 6
⇒ 75 ∶ 80 ∶ 6
∴ The ratio of their profits after 1 years is 75 ∶ 80 ∶ 6.