Math, asked by nehabhardwaj13d, 1 year ago

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

Answers

Answered by yashmeets29p0l4ur

5 percent increase
Is the answer I guess

nehabhardwaj13d: Bhai dhang say Bata

yashmeets29p0l4ur: Let the number be X

yashmeets29p0l4ur: Then If u increase 20 percent -- it gives X + 20

yashmeets29p0l4ur: Then decrease 15 percent as required by question so X + 20 - 15

yashmeets29p0l4ur: Total comes X +5 .. but the constant value with it is still in positive .. so it's a increase .. if it was X -5 .. it would be decrease

Answered by AnIntrovert

$\large\green{\textbf{\underline{\underline{Here\:is\:your\:Answer :- }}}}$

• 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%

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