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(52781) (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.
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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