Posted by Anna on Tuesday, February 12, 2013 at 11:28pm.
How many distinct numbers greater and equal to 100 and smaller than 3000 can be formed using digits 0,1,2,3,4, without repetition of digits?

Math  Reiny, Tuesday, February 12, 2013 at 11:52pm
number of 3 digit numbers , must start with 1,2,3,or4
=4x4x3 = 48
number of 4 digit numbers ,must start with 1 or 2
= 2x4x3x2 = 48
total = 96
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