Question

a sum of rs 500 is in the form of denominations of rs 5 and rs 10 .if the total number of notes is 90 .find the number of notes of each types.​

Answer 1

Answer:

5 rs note: 80

10 rs note: 10

Step-by-step explanation:

assume x and y are the number of 5 rs and 10 rs notes respectively

x+y=90

5x+10y=500

solving we get

x=80

y=10