a boy spends 7/35of his pocket money on transport and fruit. 5/8 of the remainder on sweet. if he is left with 21 cedis. what fraction of his money does he spend on sweet

35/35 - 7/35 = 28/35 left

1 - 5/8 = 3/8
28/35 * 3/8 x = 21 = 7 * 3
so
4/35 * 1/8 * x = 1
so
1/35 * 1/2 * x = 1
x = 70 cedis originally
*28/35 =
* 5/8 =