If 25 is subtracted from a number, then the number becomes 50 percent of itself. What is the number?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 50.
Let the unknown number = x
According to the problem,
if 25 is subtracted from the number, the result becomes 50% of the original number.
Hence;
⇒ x − 25 = 0.5x
⇒ x − 0.5x = 25
⇒ 0.5x = 25
⇒ x = 25/0.5 = 50