Question

A sum of 500 is in the form of denominations of 5 and 10. If the total number of notes is 90, find the number of notes of each type.​

Answer 1

Answer:

10,80

Step-by-step explanation:

x + y = 90--(1)

5x + 10y = 500

x + 2y = 100 --(2)

(2) - (1) => y = 10

Rs 10 notes = 10 & Rs 5 notes

x = 90 - 10 = 80