Question

The sum of 500 is in the form of denominations of ₹5 and ₹10.If the total number of notes is 90 find the number of notes of each denomination.​

Answer 1

$\huge\bold{\red{{SOLUTION}}}$

Let the number of 5 rupee notes be x

Then, the number of 10 rupee notes = 90−x

ACCORDING TO QUESTION

5x + 10 (90−x) = 500

5x + 900 − 10x = 500

5x = 400

x = 80

There are 80 notes of Rs.5 and 10 notes of Rs.10.