Aptitude Hack#71(5-5-19)

Question:

Raman’s salary was decreased by 50% and subsequently increased by 50%.  How much percent (%) does he lose?

A )   25%
B )   30%
C )   15%
D )   35%

Answer: A) 25%

Explaination: 
 Let the original salary = Rs. 100
New final salary = Rs. 150 of  (50% of Rs.100)
=> Rs.((150/100)*(50/100)*100) 
= Rs.75
Decrease = 25%