Question
P and Q started a business by investing Rs.9000 and
Rs.7500 respectively. After 7 months, Q increased his investment by a certain percentage such that at the end of 1 year, the profit shares of P and Q were equal. By how much percentage did Q increased his investment?Solution
Let the increased investment amount of Q = Rs.x Ratio of profit shares of P and Q = (9000 x 12) : (7500 x 7 + 5y) = 1:1 So, 108000 = 45000 + 5x => x = 12600 Increase in investment of Q = 12600 – 7500 = Rs.5100 Required % = (5100/7500) x 100 = 68%
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