A, B and C invest in the ratio of 3:4:5. The percentage of return on their investments is in the ratio of 6:5:4. Find the total earnings, if B earns Rs 250 more than A.

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answer is D.

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Detailed Solution

Concept: As you can see from the question, A, B, and C's investments are listed as a ratio. Additionally, a ratio representing the % return on their investments is shown. The % return on each investor's investment must be taken into account separately. The return on an investor's investment can be used to calculate the earning. We can utilize the equation earning of A + Rs 250 = earning of B, which represents the relationship between A and B's earnings provided in the question.

return on investment is achieved of

. Thus For B:
The earning is

return is obtained on investment of

. Thus earning is

The relationship between earnings

and

is now as follows: Earnings of

Earning of

Therefore the value

is Rs 12,500
Thus earning of

Earning of

Hence, the correct answer is option 4.