Question 1186555
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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.    <U>ANSWER</U>
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Solved.