Question
A invested Rs. ‘x’ for 3 months, then added Rs. 600
for another four months and left the business. B invested Rs. ‘x’ for the remaining period of the year. If the profit ratio A : B is 9 : 5, find ‘x’.Solution
ATQ, Amount invested by A for four months = Rs. (x + 600) According to the question, x × 3 + (x + 600) × 4 : 5x Or, (7x + 2400)/5x = 9/5 Or, 5(7x + 2400) = 9 × 5x Or, 35x + 12000 = 45x Or, 12000 = 10x Or, x = Rs. 1200
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