Question

Kavya has currency notes of denominations 100, 50 and 10
respectively. The ratio of the number of these notes is 7:3:2. The
total cash with her is 8700. How many notes of each
denomination does she have?
plz answer

Answer 1

Answer:

Let 7x, 3x and 2x be the number of the currency notes of denominations - 100, 50 and 10 respectively.

We find that ;

cast of 100 denominations = 100 × 7x = 700x

cast of 50 denominations = 50 × 3x = 150x

cast of 10 denominations = 10 × 2x = 20x

By the given condition,

total cast = 8700

=> sum of the casts of denominations 100, 50 and 10 = 8700

=>700x + 150x + 20x =8700

=>870x = 8700

=> x = 10

Therefore,

number of 100 denominations =70

number of 50 denominations = 30

number of 10 denominations = 20