Question

kaveri has a total of RS 590 as currency notes is the denominators of RS 50 RS 20 and RS 10. the ratio of the number of 50 RS notes and 20 RS notes is 3:5 she has a total of 25 notes, how many notes each denominator she has

Answer 1

let the 50 rupees and 20 rupees notes be 3x and 5x
then 10 rupees note = 25-(3x + 5x)
=25-8x
amount of 50 rupees notes = 50×3x
=150x
amount of 20 rupees notes = 20×5x
=100x
amount of 10 rupees notes = 10×25-8x
=250-80x
total money = 150x+100x+250-80x
=170x+250
170x+250 = 590
170x = 590-250
170x = 340
x = 340/170
x = 2
no.of 50 rupees notes = 3×2
= 6
no.of 20 rupees notes = 5×2
= 10
no.of 10 rupees notes = 25-16
= 9