Stephen had some marbles. He kept half of the marbles plus 5 marbles.
He gave the remaining marbles to Keith.
Keith sold 1/5 of the marbles plus 4 marbles. Then Keith gave the remaining
marbles to June. June sold 1/3 of the marbles and had 48 marbles left.
How many marbles did Stephen have at first?
Working backwards:
June sold 1/3 & had 48 left (2/3)
∴ June had : 48/2 × 3
= 72
Keith sold 1/5 of marbles, plus 4 marbles,
then gave remaining to June.
∴ 4/5 of Keith → 72 + 4 = 76
Keith : 76/4 × 5 = 95
Stephen kept half of M plus 5, Keith is (1/2 Step. →)
∴ 1/2 of Stephen
-> 95 + 5 = 100
Stephen at first : 100 × 2 = 200#