Question
A bag contains 350 coins of 25p denomination and 700
coins of 50p denominations. If 16% of 25p coins and 32% of 50p coins are removed, the percentage of money removed from the bag is nearly? Â ÂSolution
Total money = Rs.[350 x (25/100) + 700 x (50/100)] = Rs. 437.5 25 paise coins removed = Rs. (350 x 16%) = 56 50 paise coins removed = Rs. (700 x 32%) = 224 Money removed =Rs. {56 x (25/100) + 224 x (50/100)} = Rs. 126 Required percentage = (126/437.5) x 100 = 28.8%
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5 4 15 36 107 226
63, 124, 215, 345, 511, 728
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 44, 57, 81, 119, 170, 234, 311.
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