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

• A. Rs 6000
• B. Rs 7250
• C. Rs 5000
• D. None of these

Answer 1

The correct option is B Rs 7250

$\begin{array}{cccc}& A& B& C\\ Investment& 3x& 4x& 5x\\ Rateofreturn& 6y\%& 5y\%& 4y\%\\ Return& \frac{18xy}{100}& \frac{20xy}{100}& \frac{20xy}{100}\end{array}$
$Total-(18+20+20)=\frac{58xy}{100}$
B's earnings - A's earnings $=\frac{2xy}{100}=250$
Total earning $=\frac{58xy}{100}=7250$