A boy has 50p, 25p and 10p coins in the ratio of 5 ∶ 9 ∶ 4, which amount to Rs. 412. Find the number of coins of each denomination.
1
50p = 400
25p = 320
10p = 720
2
50p = 400
25p = 720
10p = 320
3
50p = 320
25p = 400
10p = 720
4
50p = 720
25p = 320
10p = 400