Question

The salary of a worker is first increased by 10% and thereafter it was reduced by 10%. what was the change in his salary

Answer 1

actually there was no change in his salary

Answer 2

$\sf\color{red}{Answer }$

Let the salary of the worker be hundred rupees.

After increase it become ₹100 + 10% of 100 = 110₹

After decrease in become ₹100 - 10% of ₹110 = ₹99

The percentage reduction = 100-99 = 1 %