Question

a sum of 500 rupaye in the form the denominators of 5 rupees and 10 rupees is the total number of not is 90 find the number of each type​

Answer 1

Answer:

5 ruppee notes are 80 and 10 ruppee notes are 10

Step-by-step explanation:

let number of 5 ruppee notes be x

let the number of 10 ruppee notes be y

total number of notes = 90

ie x + y = 90 so x = 90 - y

now the amount is 500

ie 5x + 10y = 500

5(90 - y) + 10y = 500

450 - 5y + 10y = 500

5y = 50 so y = 10

if y = 10 then x = 80