A sum of 500 is in the form of denominations of Rs5 and Rs 10
If the total no.of notes is 90 find the no.of notes of each type?
Answers
Answered by
7
Answer:
no.of Rs.5 notes=80
no.of Rs.10 notes =10
Step-by-step explanation:
Let no.of Rs.5 notes=x
no.of Rs.10 notes=y
A.T.Q.
5x+10y=500....(1)
x+y=90.....(2)
Apply (2)×5-(1)
we get
(5x+5y)-(5x+10y)=450-500
=5y-10y=-50
-5y=-50
y=10
on putting value of y in (2) we get
x=80
Similar questions