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 15a. 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)
