SOLUTION: Which of the following cannot be the difference between the three-digit numbers ABC and CBA, if A,B,and C are positive digits and A times C does not equal 0?
A) -693
B) -198
C)
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A) -693
B) -198
C)
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Question 890079: Which of the following cannot be the difference between the three-digit numbers ABC and CBA, if A,B,and C are positive digits and A times C does not equal 0?
A) -693
B) -198
C) 495
D) 241
E) 792 Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! The difference between reversed number is always a multiple of 9
Divide each by 9, find the one that does not come out even, 241/9 ~ 26.8