Question

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

Answer 1

Let the investements of A,B and C be $3x,4x,5x$ Respectively

And their rate of return be $6y,5y,4y$ respectively

According to question $\frac{20xy}{100}=250+\frac{18xy}{100}$

So, $xy=12500$

Total Profit earned = $\frac{18xy}{100}+\frac{20xy}{100}+\frac{20xy}{100}$ $=7250$