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Old 07-02-2003, 12:59 AM   #7 (permalink)
Sleepyjack
Fast'n'Bulbous
 
Location: Australia, Perth
ok, so the tenth marble always has to be a multiple of 10?
like 10,20,30 etc
i just thought it's every tenth marble and it doens't matter which number it was, hence it is the same as problem 1, in that you take out a marble after putting in 10, wether its the tenth or not. I see the difference now. i think?

One thing is that for there to be no marbles in the bag, the out rate has to exceed (at a point of time) or go for a longer period of time, than the in rate. Which i am having trouble coming to terms with???
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