A began a business with Rs. 85000, he was joined afterwards by B with Rs. 42500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 3 : 1 ?

A. 4 months B. 5 months C. 6 months D. 8 months Answer: Option D
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Solution(By Apex Team)

$\begin{aligned}&\text{Suppose B joined for x months}\\ &\text{Then,}\\ &\Rightarrow\frac{85000\times12}{42500\times x}=\frac{3}{1}\\ &\Rightarrow x=\frac{85000\times12}{42500\times3}\\ &\Rightarrow x=8\end{aligned}$

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