Question 1186555:  How many three-digit numbers can be formed using the digits 2,3,5,7,8 if the number is odd and no digit is repeated. 
 Answer by ikleyn(52903)      (Show Source): 
You can  put this solution on YOUR website! . 
How many three-digit numbers can be formed using the digits 2,3,5,7,8  
if the number is odd and no digit is repeated. 
~~~~~~~~~~~~~~~~~~~~~~~~
 
 
Any of the three digits  3, 5, or 7 in the last, the "ones" position.
Any of remaining 4 digits in the middle, the "tens" position.
Any of remaining 3 digits in the mostleft, the "hundreds" position.
In all, there are  3*4*3 = 36 such numbers.    ANSWER
 
 
Solved.
 
 
 
 
  | 
 
  
 
 |   
 
 |