# If the price of a book is first decreased by 25% and then increased by 20%,then the net change in the price will be : Option 1) 10%     Option 2) 20%Option 3) 35%Option 4) 40%Option 5) 30%

Let the original price = $X$
$X\times \frac{75}{100}\times \frac{120}{100}=.9X$