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A person has 45 coins of 50p, 1 rupee and 2 rupee coins in ratio 6 : 2 : 1. Which of the following combinations will yield the same amount of total money (the order of is 25p, 50p and 1 rupee and the total number of coins).1). 6, 2, 1, 452). 6, 2, 1, 903). 6, 5, 3, 704). None of these |
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Answer» ACTUAL money with the person = 0.5((6/9) × 45) + 1((2/9) × 45) + 2((1/9) × 45) = 15 + 10 + 10 = Rs. 35 Total money in FIRST case: Total VALUE of coins = 0.25((6/9) × 45) + 0.50((2/9) × 45) + 1((2/9) × 45) = 7.5 + 5 + 10 = Rs. 22.50 Total money in Second case: Total value of coins = 0.25((6/9) × 90) + 0.50((2/9) × 90) + 1((2/9) × 90) = Rs. 45 Total money in Third case: Total value of coins = 0.25((6/14) × 70) + 0.50((5/14) × 70) + 1((3/14) × 70) = Rs. 35 In third case, the amount is same |
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