Question

a number first increased by 20%and then the new number so obtained is decreased by 20%. find the net increase and decrease percent.

Answer 1

Let the number = 100

Increased by 20% = 100+20 = 120

New number = 120

Decreased by 20% = 120-20% of 120
= 120- 24 =96

Now,

Net Decrease percentage = 100-96 = 4% .

The net Decrease percentage is 4% .

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Answer 2

$\huge \bf \underline{hey}$

$\huge{ \mathfrak{here \: is \: answer}}$

$\bf{see \: in \: pic}$

$\sf{hence \: answer \: is \: 4\%}$
and
net increase is 16 %
$\huge \boxed{ \ulcorner{ \mathfrak{hope \: it \: helps}}}$
$\huge{ \mathfrak{THANKS}}$

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