SOLUTION: how many two digit odd numbers can be made using the digits 0,1,2,3,4,5,7,8 if each digit can be used at most once in a number

Algebra ->  Permutations -> SOLUTION: how many two digit odd numbers can be made using the digits 0,1,2,3,4,5,7,8 if each digit can be used at most once in a number       Log On


   

Question 916674: how many two digit odd numbers can be made using the digits 0,1,2,3,4,5,7,8 if each digit can be used at most once in a number
Answer by kmadison(20) About Me  (Show Source):
You can put this solution on YOUR website!
The number must end in 1, 3, 5, or 7, giving a total of 4 possibilities.
The number can't start with 0. So for each of the possible ending numbers there are 7 other numbers to choose from.
So altogether there are 7 x 4 or 28 different numbers.