Question

If 50% of a number is added to 50, the result is the number itself. Find the number.
The sum of digits of a two-digit number is 8. If 36 is added to this number, the dig
reversed. Find the number​

Answer 1

Step-by-step explanation:

$50\% \times x + 50=x \\ \frac{50}{100} \times x + 50 = x \\ \frac{1}{2} x + 50 = x \\ \frac{x}{2} + 50 = x \\ \frac{x + 100}{2} = x \\ x + 100 = 2x \\ 100 = 2x - x \\ \boxed{ \large \underline{ \underline{ \bf 100}} = x} \\ \\ \large \bf 26 + 36 = 62$