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Find the two-digit number. I: Digits add to 9. II: Reversing adds 27 to it.

ANeither, even together
BI alone suffices
CBoth together needed
DII alone suffices
Answer & Solution
Correct answer: C. Both together needed
Digit sum 9 and a digit difference of 3 give 3 and 6, so the number is 36.
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