SOLUTION: how many three digit numbers have 3 distinct digits whose product is odd?

Algebra ->  Permutations -> SOLUTION: how many three digit numbers have 3 distinct digits whose product is odd?      Log On


   



Question 1060735: how many three digit numbers have 3 distinct digits whose product is odd?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how many three digit numbers have 3 distinct digits whose product is odd?
-----
For an odd product all 3 digits must be odd --> 1, 3, 5, 7 & 9
The 1st digit is 1 of 5
Then 1 of 4, then 1 of 3
5*4*3 = 60