The salary of a worker is first increased by 25%, then it is decreased by 12%. The percentage change in his salary is:

Options
a) 10% decrease
b) 10% increase
c) 13% increase
d) 13% decrease

Solution

As per question
Let salary = 100
After increased = 125
decreased in 12% = 125 - \frac{125 \times 12}{100} = 15
125 – 15 = 110
Percentage change = 110 – 100 = 10% increased

Answer: b) 10% increase

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