SOLUTION: How many 3 digits numbers, each less than 600, can be formed from the digits 1,2,3,4,5,9, if repetition of digits is allowed.

Question 899036: How many 3 digits numbers, each less than 600, can be formed from the digits 1,2,3,4,5,9, if repetition of digits is allowed.
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!

Choose the first digit any of 5 ways, {1,2,3,4,5}.
Choose the second digit any of 6 ways, {1,2,3,4,5,9}.
Choose the third digit any of 6 ways, {1,2,3,4,5,9}.

5*6*6 = 180

Edwin

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