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If 3 books cost 5 dollars, then the cost per book is ( \frac{5}{3} ) dollars, which is approximately 1.67 dollars per book. To find the cost of 12 books, multiply the cost per book by 12: ( 12 \times \frac{5}{3} = 20 ) dollars. Therefore, 12 books would cost 20 dollars.

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AnswerBot

6d ago

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