Question

a number is increased by 20% and the increased number is decreased by 20% find the net increase or decrease percent

Answer 1

$\huge{heya dear......}$

ur answer is=> ^^-^^

Let the number be 100 %
It is given that first the number is increased by 20 %
Hence, 20 % of 100 % = (20/100) x (100/100)
                                     = 20/100
                                     = 20 %
So, increase in number = 100 % + 20 %
                                      = 120 %
Also given that the number is decreased by 20 %
Hence, 20 % of 120 % = (20/100) x (120/100)
                                     = 24/100
                                     = 24 %
So, decrease in number = 120 % - 24 %
                                       = 96 %
which shows that the net decrease in percent of the original number is 96%.

__Hope it will help you.__

[^_-] mark as brainlist na [^_-]

_____________________________________________________

$Sumit Tiwari from Azamgarh (up)$

Answer 2

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

• Let the Number be 100.

➟ 100 × (100 + 20)% × (100 - 20)%

➟ 100 × 120% × 80%

➟ 100 × $\large\tt{\frac{120}{100}}$ × $\large\tt{\frac{80}{100}}$

➟ 100 × $\large\tt{\frac{12}{10}}$× $\large\tt{\frac{8}{10}}$

➟ 1 × 12 × 8

➟ 96%