Question

Salary of a person is first increased by 20% then it is decreased by 20% . Change in salary is

Answer 1

MARK AS BRAINLIEST

Answer:

4 RS DECREASE

Step-by-step explanation:

Let the initial salary x be ₹100.

therefore,

INCREASED SALARY

$= x + 20\% \times x \\ = 100 + \frac{20}{100} \times100 \\ = 100 + 20 \\ = 120 \: rs.$

DECREASED SALARY:

$= 120 - 20\% \times 120 \\ = 120 - \frac{20}{100} \times 120 \\ \\ = 120 - \frac{2}{1} \times 12 \\ = 120 - 24 \\ = 96 \: rs.$

SALARY CHANGE:

$= x - 96 \\ = 100 - 96 \\ = 4 \: rs. \: decrease$