manojs income is increased by 20% and then decreased by 20%, what is the total percentage change in Manoj's income?
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Step-by-step explanation:
Let his total income be 100
In 1st case: Increase= 20% of 100
=20
Income after this= 100+20=12
In 2nd case: Decrease= 20% of 120=20/100×120=24
Income after the decrease = 120-24=96
Decrease in whole income = 24-20=4
Percentage change = 4/100×100 = 4%
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