Question3. The difference of the digits of a two-digit number is 5 . When the digits are reversed, the number decreases by 45 . Find the original number.
161, ว2, 83,94

Studdy Solution
Construct the original number from the digits.
Since the tens digit $x = y + 5$, and both $x$ and $y$ must be digits (0 through 9), find suitable values: - If $y = 2$, then $x = 2 + 5 = 7$.
Therefore, the original number is: \[ 10x + y = 10(7) + 2 = 72$
The original number is $\boxed{72}$.