Question 125

A sum of Rs. 625 is made up of 80 currency notes which are of either Rs. 10 or Rs. 5 denomination. The number of Rs. 10 notes are

Solution

Let there be x 10 rupee notes in the sum. The number of 5 rupee notes = 80 - x

The sum = 10x + (80 - x)* 5 = 625

So, x = 45

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