While solving a problem, by mistake, Anita squared a number and then subtracted 25 from it rather than first subtracting 25 from the number and then squaring it. But she got the right answer. What was the given number ?

A. 48

B. Cannot be determined

C. 13

D. 38

Answer: Option C

Solution(By Examveda Team)

Let the given number be x
According to the question,
x² - 25 = (x - 25)²
x² - 25 = x² + (25)² - 50x
x = 13