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 :  Choices:
A) 10  B) 388  C) 37  D) 29  E) 22
Explanation:   Let the original price be Rs. 100.   New final price = 120 % of (75 % of Rs. 100) = Rs. (120/100 * 75/100 * 100) = Rs. 90.   Decrease = 10%   10nswer: 10) 10
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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 :