Question

Shreya has a total of ₹590 as currency notes in ratio of no of ₹50 notes and ₹20 notes is 3:5 if she has a total of 25 notes how many notes of each denominator she has

Answer 1

let no of note rs50 be x
no of rs 20 = 25 -x
amount of rs 50 = 50x
amount of rs 20 = 20×(25-x)
500-20x
50x +500-20x = 590
30x = 590-500
30x = 90
x = 3
no of note rs 50 = 3
no note rs 20 = 25-3 = 22