Question

Please ans the 4th que.........

Answer 1

let x be the no of 1 rupee coins

let y be the no of the 50 paisa coins

case 1:

x + y = 10 ------------------------1

case 2:

50x + 100y = 600

( divide by 50)

x + 2y = 12 ----------------------2

solving 1 and 2

y = 2

x = 8