Question
A bag contains 300 coins of 25p denomination and 600
coins of 50p denominations. If 10% of 25p coins and 20% of 50p coins are removed, the percentage of money removed from the bag is nearly?Solution
Total money = Rs.[300 x (25/100) + 600 x (50/100)] = Rs. 375 25 paise coins removed = Rs. (300 x 10%) = 30 50 paise coins removed = Rs. (600 x 20%) = 120 Money removed =Rs. {30 x (25/100) + 120 x (50/100)} = Rs.67.5 Required percentage = (67.5/375) x 100 = 18%
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