A and B invest Rs. 3000 and Rs. 2400 respectively in a business. If after one year there is a loss Rs. 720, how much loss will B bear? (loss or profit is in proportion to their investment)

A. Rs. 72 B. Rs. 320 C. Rs. 400 D. Rs. 360 Answer: Option B
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Solution(By Apex Team)

∵ Loss will be divided according to their investment ratio = $\begin{array}{l}A:\quad B\\ 3000:2400\\ 5:4\\ \text{ Loss of }B=\frac{4}{(5+4)}\times720\\ =\text{ Rs. }320\end{array}$

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