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OpenStudy (anonymous):
What different digits represent ABC-CA=AB
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OpenStudy (anonymous):
A=1 why?
OpenStudy (anonymous):
beacuse it is three digit number - two digit number = two digit number the maximum two digit number is 99 and if the three digit number is greater than 198 we will never get a two digit number so A must be 1
OpenStudy (anonymous):
Now it becomes, 1BC - C1 = 1B
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