We overheard two boys playing marbles near Quizmaster Towers, and this is what they said.
A: I've got more marbles than you have!
B: I bet you haven't - see for yourself
A: Okay, you have got more than me, but I'm the better player so I'll soon have more than you
B: You think so?
A: I do, and if I win three marbles from you I'll have twice as many as you'll have
B: You're on
[pause while they played]
A: Oh you're so lucky, I've never seen such a fluke
B: Told you I'd win
A: Yes, but you only won two
B: I might've won only two from you, but now I've three times as many marbles as you have
A: Right, you won't beat me again
[pause while they played again]
A: Oh I give up
B: Well you're going to have to give up, as I've got all your marbles
So how many marbles does player B now have?
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Answer at 9.00 on Monday