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Smallest possible difference - New GMAT Prep

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by rahulvsd » Fri May 18, 2012 8:59 am
N and M are each 3 digit integers. Each of the numbers 1,2,3,6,7 and 8 is a digit of either M or N. What is the smallest possible positive difference between N and M?

A. 29
B. 49
C. 58
D. 113
E. 131

[spoiler]OA: A. [/spoiler]
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by mathbyvemuri » Fri May 18, 2012 9:05 am
trial method:
712 and 683
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