Question: Ali had a stock of 800 books in his Room. He sold 60 on Monday, 10 on Tuesday, 20 on Wednesday, 44 on Thursday and 66 on Friday. How many books were not sold?
Answer: We look first for the total number of books that were sold: 60 + 10 + 20 + 44 + 66 = 200 books. So the total number of books that were not sold is: 800 – 200 = 600 books. The answer is 600.
[Question]John attends a protest for 4 days. He then attends a second protest for 25% longer than the first. How many days did he spend protesting?
[Answer]The second protest was 4 * .25 = 1 day longer than the first. So the second protest was 4 + 1 = 5 days. Thus he spent 4 + 5 = 9 days protesting. The answer is 9.
Q: Eric decides to go to the park. He runs for 20 minutes, then jogs for 10 minutes to reach the park. When he returns, he takes a different route home and this takes him 3 times as long as his trip there. How long does it take Eric to return home?
A: Eric’s trip to the park took 20 minutes running + 10 minutes jogging = 30 minutes. So his return trip took 30 minutes * 3 = 90 minutes. The answer is 90.
Question: Candace decides to enter a race. The race is run in 4 segments, with racers eliminated at the end of each segment. 10 racers are eliminated after the first segment. A third of the remaining racers are eliminated after the next section. Half of the remaining racers are eliminated before the last leg of the race. If 100 racers started the race, how many will run in the final section of the race?
Answer: After the first segment, there are 100 – 10 = 90 racers left in the race. After the second segment, 90 / 3 = 30 racers are eliminated. This leaves 90 – 30 = 60 racers to compete in the third segment. After the third segment, 60 / 2 = 30 more racers are eliminated. This leaves 60 – 30 = 30 racers to run in the final section of the race. The answer is 30.
[Question]John's hair grows 1.5 inches every month. Every time it gets to 9 inches long he cuts it down to 6 inches. A haircut costs $45 and he gives a 20% tip. How much does he spend on haircuts a year?
[Answer]He cuts off 9 - 6 = 3 inches when he gets a haircut. That means he needs to cut it every 3 / 1.5 = 2 months. So he gets 12 / 2 = 6 haircuts a year. He gives a 45 * .2 = $9 tip. So that means each hair cut cost 45 + 9 = $54. So he pays 54 * 6 = $324 a year. The answer is 324.
[Question]A small pizza can gives 4 slices, and a large pizza gives 8 slices. George purchased 3 small and 2 large pizzas. George would like to eat 3 pieces. His friend Bob would like to eat one more piece than George. Susie will eat half as many as Bob. Bill, Fred and Mark would each like 3 pieces. How many slices of pizza will be left over?
[Answer]

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
George has 3 small pizzas * 4 slices = 12 pieces. George also has 2 large pizzas * 8 slices = 16 slices. Total, George has 12 + 16 slices = 28 slices of pizza. Bob will eat 3 slices + 1 = 4 slices. Susie will eat 1 / 2 * 4 slices = 2 slices. Bob, Fred and Mark will eat in total 3 + 3 + 3 = 9 pieces. Total slices of pizza eaten will be 3 + 4 + 2 + 9 = 18 pieces. Total pizza slices remaining will be 28 pieces - 18 = 10 slices left. The answer is 10.