Question

A bag contains 1 rupee 50-paise and 25-paise coins 5:6:7 312

Answer 1

50 paise = 1/2 rupee

25 paise = 1/4 rupee

now

let total money be x

so , 5x * 1 + 6x * 1/2 + 7x * 1/4 = 312

5x + 3x + 7x/4 = 312

20x + 12x + 7x = 1248

39x = 1248

x = 32

5x * 1 + 6x * 1/2 + 7x * 1/4 placing value of x as 32

5(32) * 1 + 6(32) * 1/2 + 7(32) * 1/4

160 + 96 + 56 = 312

so we have 160 of 1 rupee coins

96 of 50 paise

56 of 25 paise