Multiple choice general knowledge math & puzzles

A two digit number when reversed is 9 greater than the original one. The sum of the digits is a factor of the original number as well as the reversed one and the product of the digits is a factor of the original number, but not of the reversed one

  1. 23

  2. 34

  3. 12

  4. 45
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For 12: reversed is 21 (21-12=9). Sum of digits (3) is a factor of 12 and 21. Product of digits (2) is a factor of 12 but not 21. All conditions are met.

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