Q. The sum of the digits of a two-digit number is 11. If the number is 29 more than the number obtained by reversing its digits, what is the number?
✅ Correct Answer: (B)
74
Explanation: Let number = 10a + b; a + b = 11 and (10a + b) − (10b + a) = 29 → 9a − 9b = 29 → a − b = 29/9 → a = 7, b = 4 so number = 74.
Explanation by: Mr. Dubey
Let number = 10a + b; a + b = 11 and (10a + b) − (10b + a) = 29 → 9a − 9b = 29 → a − b = 29/9 → a = 7, b = 4 so number = 74.