GAUSS8 2012 Problem 17

Past Contests GAUSS8 2012
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1

The digits 2,4,6 and 8 are each used once to create two $2-$digit numbers. What is the smallest possible di erence between the two $2-$digit numbers?

Answer Choices
A. 24
B. 14
C. 18
D. 12
E. 22