Question : A and B jointly made a profit of Rs. 1,650 and they decided to share it such that $\frac{1}{3}$ of A's profit is equal to $\frac{2}{5}$ of B's profit. Then the profit of B is:
Option 1: Rs. 700
Option 2: Rs. 750
Option 3: Rs. 850
Option 4: Rs. 800
Correct Answer: Rs. 750
Solution :
Let A's profit as $a$ and B's profit as $b$.
Given that $\frac{1}{3}$ of A's profit is equal to $\frac{2}{5}$ of B's profit.
$\frac{1}{3}a = \frac{2}{5}b$
$a = \frac{6}{5}b$
The total profit of Rs. 1650 is divided among A and B.
$a + b = 1650$
⇒ $b +\frac{6}{5}b= 1650$
⇒ $5b+6b=8250$
⇒ $11b=8250$
⇒ $b=750$
Hence, the correct answer is Rs. 750.
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