Question

A number is increased by 10% and then decreased by 10% . Find net increase or decrease per cent.​

Answer 1

Answer:

If the number is 100 , when it increase by 10%, it become 110. When 110 is decreased by 10%, its value is 110 x (90 ÷ 100) = 99. Net decrease is 1%.

Step-by-step explanation:

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Answer 2

let the number is 100

increase 10%=100+10=110

decrease of 10% on 110

=(10/100)×110=11

nett amount 110–11=99

So decrease 100–99=1

decrease of 1 out of 100

percentage of decrease 1%