Correct Answer - Option 3 : 3.84% increase
Given:
Salary increased by 18 % and decreased by 12 %.
Formula used:
Increase or decrease in salary = a – b – (ab/100)%
Where, positive sign means increment and negative sign means decrement
Calculation:
⇒ 18 – 12 – [(18 × 12)/100] %
⇒ (6 – 2.16)%
⇒ 3.84%
∴ There will be 3.84% increase in salary.