Question

a sum of rs 500 is in the form of 5 rupee and 10 rupee notes if total number of notes is 75 find the number of notes of each type

Answer 1

5 rupe notes=50
10 rupee notes=25

Answer 2

Let the 5Rs notes be x
Let the 10Rs notes be y
5x+10y=500
5(x+2y)=500
x+2y=100
x+y=75
By both the above two equations
y=25
x=50
5rupee notes=50
10 rupee notes =25