My question is: James writes from 1 PM to 4 PM every night. He can write 5 pages per hour. How many weeks will it take to finish his 735-page book? Your thoughts:
He writes for 4 - 1 = 3 hours per day. That means he writes 3 * 5 = 15 pages per day. So it would take him 735 / 15 = 49 days. That means it will take 49 / 7 = 7 weeks. The final answer: 7.