The sum of the digits of a two-digit number is 12. The difference of the digits is 6. Find the number?
Correct answer: E. Either (a) or (b)
- A. 93
- B. 39
- C. 75
- D. 48
- E. Either (a) or (b)
Explanation
Let the digits be a and b. Then a + b = 12 and their absolute difference is 6, giving the digit pair 9 and 3; because the order is not specified, both 93 and 39 satisfy the conditions. A likely mistake is choosing only option a or b and assuming the larger digit must come first.
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