Question

Take Rs5, Rs10, Rs20, Rs 50, Rs100, Rs 500 notes each from your parents. Note down the
serial numbers written on the note for each of the denominations (ignoring the letters). Your
will have a four-or-five-or six-digit numbers for each of the notes. Check whether these
numbers are perfect squares root or not. If yes, find their square roots. If not, estimate the
square of these numbers​

Answer 1

Answer:

Let the number of 5 rupee notes be x,then

The number of 10 rupee notes =90−x

Then ,according to the 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.

hope it help