The salary of a person was reduced by 50%.

The salary of a person was reduced by 50%. By what percent should his reduced salary be raised so as to bring it at par with his original salary?

Answer/Solution

100%

Let the original salary be $100
New salary = $50
Increase on 50 = 50
increase on 100 = 50/50 *100 = 100%(APPROXIMATELY)
Answer is E

The salary of a person was reduced by %. By what percent should his reduced salary be raised so as to bring it at par with his original salary?

100

In order to solve problem, you must evaluate (n₀ / 100 * 100) / (100 - n₀ / 100 * 100) * 100.

n₀ =	50

(n₀ / 100 * 100) / (100 - n₀ / 100 * 100) * 100
Evaluate n₀ / 100 = 0.5
(0.5 * 100) / (100 - n₀ / 100 * 100) * 100
Evaluate 0.5 * 100 = 50
50 / (100 - n₀ / 100 * 100) * 100
Evaluate n₀ / 100 = 0.5
50 / (100 - 0.5 * 100) * 100
Evaluate 0.5 * 100 = 50
50 / (100 - 50) * 100
Evaluate 100 - 50 = 50
50 / 50 * 100
Evaluate 50 / 50 = 1
1 * 100
Evaluate 1 * 100 = 100
100
The answer to the problem and the result of (n₀ / 100 * 100) / (100 - n₀ / 100 * 100) * 100 is 100