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1. At a certain bookstore , the regular price of each book is 20 percent less than its list price. If during a sale the price of each book at the store was 15 percent less than its regular price, then the price of a book during the sale was what percent less than its list price ?
- A. 30%
- B. 30%
- C. 30%
- D. 30%
Answer: Option B
Explanation:
Shortcut method:
±a±b±(ab/100)
=-20-15+(20×15)/100
=--32%
=32% [(-) means price decreased/discounted]
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