Question

A man 's salary was raised by 10% and then reduced by 10%. Find the percentage change in his salary.​

Answer 1

Answer:

let Salary= 100

100×(110/100)×(90/100)=99(final salary)

so, salary reduced by 1%

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Answer 2

Let the salary be 100

Salary raised by 10%=100+100/10=110

Salary reduced by 10%=110-110×10/100=110-10=99

So, 100-99=1

Percentage change=1×100/100=1%(Ans)