If a number is increased by 20
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x +20
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||✪✪ CORRECT QUESTION ✪✪||
☛ A number is increased by 20% and the increased number is decreased by 20%.Find the increase or decrease percent.
|| ✰✰ ANSWER ✰✰ ||
☛ Let the number to = 100
Increase in the number= 20% of 100
= (20/100)×100= 20
Increased Number = 100 + 20= 120
The resulting number decreased by 20%
Decrease in the number= (20/100)×120))= 12×2=24
New number= 120-24 = 96
Now, net decrease =100-96 = 4
Net %Decrease = (net decrease/ Original number × 100) %
=( ( 4/ 100 )×100) %
= 4%.
Hence, net percent decrease= 4%
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