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%
625, 250, 100, 40, 16, 6
Find the wrong number in the given series.
2827, 2863, 2811, 2867, 2819, 2871
Find the wrong number in the given number series.
 289, 274, 260, 247, 235, 225
556, 547, 483, 458, 242, 196
213, 215, 225, 257, 313, 393
164, 160, 172, 136, 188, 128
Find the wrong number in the given number series.
237, 526, 165, 608, 77, 702
128, 173, 196, 189, 176, 133
12, 14, 18, 26, 38, 64
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1, 4, 9, 16, 25, 38, 49