Percentage - Quantitative Aptitude (MCQ) questions for Q. 765

Q.  If the salary of an employee is first increased by 20% and the decreased by 12%, then what is the change in his salary in percent?
- Published on 06 Jul 15

a. 16% increase
b. 16% decrease
c. 5.6 % increase
d. 8 % increase

ANSWER: 5.6 % increase
 
Let the first change be denoted by ‘x’ and the second by ‘y’.
The net change is given by {x + y + (x*y)/100}%
Therefore, the net change in salary is {20 + (-12) + (20*(-12))/100}
= 8 – 2.4
= 5.6% (as the sign is +ve, the change is increase)

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