Question

20. The salary of an officer is increased by 20%. By what percentage should the new
salary be reduced to restore the original salary
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Answer 1

Answer:

16.67%

increase salary = 120%

1% of 120 is 1.2

to reduce it to original i.e. 100 percentage

we need to reduce it by 20

but 1 % of 120 is 1.2

therefore

20 /1.2 = 16.667

therefore we need to reduce it by 16.67 %