12) 13) the salary of a person is increased by 20%. by what % the new salary must be reduced to restore the original salary?
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Let amt=100
100 + 100 of 20% =120
120 of x% = 100
6x/5=100
x=83.33%
Reduced% = 100 - 83.33 = 16.67%
100 + 100 of 20% =120
120 of x% = 100
6x/5=100
x=83.33%
Reduced% = 100 - 83.33 = 16.67%
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