Question #202c3

1 Answer
IDKwhatName
Jun 29, 2017

Your number is #a8bb# where #0<"a"<=9, 0<="b"<=9#

There are 10 possible numbers for the tens and units, and only 9 possible numbers for the thousands, 0 would make it three digits.

The number of possible combinations is #9*10^2=9*100=900#.

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