1. A sum of Rs. 625 is made up of 80 currency notes which are either Rs. 10 or Rs. 5 denomination. The number of Rs. 10 notes are---------
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By: anil on 05 May 2019 02.43 am
Let there be x 10 rupee notes. So the number of 5 rupee notes = 80 - x So, total value of the money = 10x + (80- x)*5 = 10x + 400 - 5x = 400 + 5x But 400 + 5x = 625 so x = 225/5 = 45
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