If Arif can read 39 pages of a book in half an hour. How long will it take him to finish a book that is 1287 pages?
- 17 Hours
- 16 Hours
- 16.5 Hours
- None of these
Explanation
Arif reads 39 pages in 0.5 hours, so in 1 hour he reads:
39 × 2 = 78 pages/hour
Total pages in the book = 1287 pages. Time to finish:
Time = Total pages/Pages per hour = 1287/78 = 16.5 hours
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