- 10 : 5 : 4 : 10 : 16
- 10 : 6 : 4 : 10 : 15
- 10 : 5 : 4 : 10 : 15
- None of the above

Option 3 : 10 : 5 : 4 : 10 : 15

**Given:**

Five friends A, B, C, D and E invested 1000, 600, 800, 750 and 900 every month respectively.

A, B, C, D and E invested for 6 years, 5 years, 3 years, 8 years and 10 years respectively.

**Formula Used:**

Ratio of Profit = Ratios of product of Amount invested and time

**Calculation:**

Amount A invested = 1000 × 6 × 12

Amount B invested = 600 × 5 × 12

Amount C invested = 800 × 3 × 12

Amount D invested = 750 × 8 × 12

Amount E invested = 900 × 10 × 12

Ratio profits = (1000 × 6 × 12) : (600 × 5 × 12) : (800 × 3 × 12) : (750 × 8 × 12) : (900 × 10 × 12)

∴ Ratio of profits of A, B, C, D and E = 10 : 5 : 4 : 10 : 15

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