Question
P and Q started a business with a
combined investment of Rs. 8400, where their investments were in the ratio of 9 : a, respectively. Four months later, M joined the business with an investment of Rs. 4200. At the end of a year, the total profit was Rs. 7500. What is M's share of the profit?Solution
ATQ, Ratio of Profit share of (P + Q): M = (8400 × 12): 4200 × (12 - 4) = 3:1 Therefore, profit share of M = [1/(1 + 3)] × 7500 = Rs.1875
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