harsh.champ wrote:Q)A and B each had a certain number of playing marbles. A lost a game to B and had to give B half of his marbles. In the second game, B lost and had to give three-fourths of his marbles to A, who now had thirty marbles. Finally, the two played a third game. B won and acquired some of A?s marbles.At this point, each boy had exactly the number of marbles he had started with, and A had twice as many marbles as B. How many marbles did B has in the beginning?

(1)12
(2)24
(3)36
(4)72
(5)None of the above