Question: Unrest leads to 30 days of protest in 21 different cities. In each city, there are 10 arrests per day. The average person spends 4 days in jail before trial and then spends half of a 2-week sentence. How many combined weeks of jail time are there? Think carefully first, then make a decision:
Each city arrest 30 * 10 = 300 people during the protest. So a total of 300 * 21 = 6300 people were arrested. They spend 14 / 2 = 7 days of their sentence in jail. So they spend a total of 7 + 4 = 11 days in jail. So there was a total of 6300 * 11 = 69300 days in jail. So they spent 69300 / 7 = 9900 weeks in jail. So the answer is 9900.