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Each of the digits 1,2,3,4,5,6 is used exactly once in forming the 3-digit integers X and Y. How many possible values of X+Y are there if |X-Y|=111?

 Apr 24, 2021
 #1
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There are two possible values of X + Y: 381 and 417.

 Apr 24, 2021
 #2
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actually i got it... it was 6

 Apr 24, 2021

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