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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full explanation:
Let's consider the salary of the officer =100
So, if the salary is increased by 25% then new salary =100+10025×100
=100+25
=125
So, his new salary is 125
To make his salary original 25 must be subtracted from 123, then his salary will be 100 or original salary
So,
% decrease =12525×100
=51×100
=20%
Hence 20% of his new salary must be deducted so that his salary becomes original salary.
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