Question: Jana is 5 inches taller than Kelly, and Kelly is 3 inches shorter than Jess. If Jess is 72 inches tall, how tall is Jana?
Answer: Kelly is 72 - 3 = 69 inches tall. Jana is 69 + 5 = 74 inches tall. The answer is 74.
[Question]Micah, Dean, and Jake are all training for a marathon organized by a local NGO to support children in their town who have cancer. Micah runs 2/3 times as fast as Dean. It takes Jake 1/3 times more time to finish the marathon than it takes Mica. If Dean takes 9 hours, what's the total time the three take to complete the marathon?
[Answer]If Dean takes 9 hours to finish the marathon, it takes Micah 2 / 3 * 9 hours = 6 hours to finish the marathon. It takes Jake 1 / 3 * 6 hours = 2 more hours to finish the marathon than Micah. Jake takes a total of 6 hours + 2 hours = 8 hours to finish the marathon. Micah, Dean, and Jake take a total of 8 hours + 6 hours + 9 hours = 23 hours to finish the marathon. The answer is 23.
Q: Of the 90 people on William's bus, 3/5 were Dutch. Of the 1/2 of the Dutch who were also American, 1/3 got window seats. What's the number of Dutch Americans who sat at the windows?
A: On the bus, the number of Dutch people was 3 / 5 of the total number, a total of 3 / 5 * 90 = 54 people. Out of the 54 people who were Dutch, 1 / 2 were Dutch Americans, a total of 1 / 2 * 54 = 27 people. If 1 / 3 of the passengers on the bus identifying as Dutch Americans sat at the windows, their number is 1 / 3 * 27 = 9. The answer is 9.
Question: In a parking lot, there are cars and motorcycles. Each car has 5 wheels (including one spare) and each motorcycle has 2 wheels. There are 19 cars in the parking lot. Altogether all vehicles have 117 wheels. How many motorcycles are at the parking lot?
Answer: There are 19 cars at the lot, so there are 5 * 19 = 95 wheels of cars. So there are 117 - 95 = 22 wheels of motorcycles in the parking lot. Each motorcycle has 2 wheels, so that leaves us with 22 / 2 = 11 motorcycles in the parking lot. The answer is 11.
[Question]The chocolate factory produces 50 candies per hour. It has to fulfill an order and produce 4000 candies. How many days will it take to complete the order if the factory works for 10 hours every day?
[Answer]It will take 4000 candies / 50 candies / hour = 80 hours to make all the candy. It will take 80 hours / 10 hours / day = 8 days to complete the order. The answer is 8.
[Question]Jack makes his own cold brew coffee. He makes it in batches of 1.5 gallons. He drinks 96 ounces of coffee every 2 days. It takes 20 hours to make coffee. How long does he spend making coffee over 24 days?
[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
He makes it in batches of 1.5 * 128 = 192 ounces. He drinks 96 / 2 = 48 ounces of coffee a day. So he drinks the coffee in 192 / 48 = 4 days. So in 24 days he makes 24 / 4 = 6 batches. That means he spends 6 * 20 = 120 hours making coffee. The answer is 120.