The difference between a two-digit number and the number obtained by…
2025
The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 45. What is the difference between the two digits of that number?.
- A.
5
- B.
7
- C.
6
- D.
None of these
Attempted by 122 students.
Show answer & explanation
Correct answer: A
Answer:
5
Explanation:
Let the ten’s digit be x and unit’s digit be y
Then (10x + y) – (10y + x) = 45
9(x – y) = 45
x – y = 5