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Question

The number of coins are 5 more than number of notes . If coins are of 5 rupees notes and notes are of 10 rupees. Total money is 2505 .Find the number of coins

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Solution

Let the number of coins and notes are x,y
From the given conditions
x=5+y,5x+10y=250525+15y=2505y=165,x=170

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