Answer the following question, with explanation first.
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?

7
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.

.

So, the answer is 7