SOLUTION: If three numbers from 100 to 999 are chosen at random, one at a time, find the probability that they will be chosen in increasing order.

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Question 1108503: If three numbers from 100 to 999 are chosen at random, one at a time, find the probability that they will be chosen in increasing order.
Answer by ikleyn(52805) About Me  (Show Source):
You can put this solution on YOUR website!
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If three numbers from 100 to 999 are chosen at random, there is ONLY ONE permutation / arrangement to get them in increasing order 
against 6 = 3! of possible arrangements.


So, the probability under the question is 1%2F6.

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I assume (although the problem does not state it explicitly) that every time three different numbers are chosen at random.