Question

A number is first increased bymy 20% and the decreased by 15% .find the net increase or decrease percent.

Answer 1

it is 2% you do one thing you take a number maybe 100 then increased by 20% it will be 120 now according to your question you have said that you have to decrease that amount by 15% so now do one thing that pic now the given number is 120 now decrease it by 15%you will get 102

now compare 100 and hundred and 2 there is 2% increase so that's your answer I hope you like it mark me as a brainliast

Answer 2

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• Let the Number be 100.

➟ 100 × (100 + 20)% × (100 - 15)%

➟ 100 × 120% × 85%

➟ 100 × $\large\tt{\frac{120}{100}}$ × $\large\tt{\frac{85}{100}}$

➟ 100 × $\large\tt{\frac{12}{10}}$× $\large\tt{\frac{17}{20}}$

➟ 10 × 12 × $\large\tt{\frac{17}{20}}$

➟ 102%

2% increase