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D invested Rs. 7680 for two years. but decreased the amount by 2000 after 1 year. E invested 16400 for 3 years. but decreased his amount by 10000 after 1 year. Find the ratio of profit. 
1. 182 : 365
2. 167 : 365
3. 151 : 365
4. 173 : 365

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Correct Answer - Option 2 : 167 : 365

Given: D invested Rs. 7680 for two years. but decreased the amount by 2000 after 1 year. E invested 16400 for 3 years. but decreased his amount by 10000 after 1 year.

Formula: Ratio of profits after investment = ratio of sum of the product of investment amount and the time invested for.

Calculation:

 D

E

 7680 × 1 + 5680 × 1

16400 × 1 + 6400 × 2

 7680 + 5680

16400 + 12800

 13360

29200


Required ratio = 167 : 365

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