SOLUTION: How many 3-digits numbers can be formed from the digits 0,1,2,3,4,5 and 6 if each digit can be used only once.

Algebra ->  Permutations -> SOLUTION: How many 3-digits numbers can be formed from the digits 0,1,2,3,4,5 and 6 if each digit can be used only once.      Log On


   

Question 636582: How many 3-digits numbers can be formed from the digits 0,1,2,3,4,5 and 6 if each digit can be used only once.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How many 3-digits numbers can be formed from the digits 0,1,2,3,4,5 and 6 if each digit can be used only once.
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Left-most digit: 5 ways
Middle digit: 5 ways
Right-most digit: 4 ways
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Total = 5*5*4 = 100 3-digit numbers.
Cheers,
stan H.