If Arif can read 39 pages of a book in half an hour. How long will It take her to finish a book that is 1287 pages?
Correct answer: B. 16.5 Hours
- A. 16 Hours
- B. 16.5 Hours
- C. 17 Hours
- D. 15.5 Hours
Explanation
Arif reads 39 pages in 0.5 hour, so the rate is 39 pages / 0.5 h = 78 pages/h. The time for 1,287 pages is 1,287 pages / 78 pages/h = 16.5 h. Students may choose 17 hours by rounding the exact half-hour result upward.
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