Question: John buys 20 hours of music a month. The average length of a song is 3 minutes. He buys each song for $.50. How much does he pay for music a year?
Answer: He buys 20 * 60 = 1200 minutes of music a month. So that is 1200 / 3 = 400 songs. That means he pays 400 * .5 = $200 a month. So it comes out to 200 * 12 = $2400 a year. The answer is 2400.
[Question]Jasmine swims 12 laps every afternoon, Monday through Friday. How many laps does she swim in five weeks?
[Answer]Jasmine swims 5 days a week. The number of laps per week is 12 laps / day * 5 days / week = 60 laps / week. In five weeks, she swims 5 weeks * 60 laps / week = 300 laps. The answer is 300.
Q: Big Lots is having a sale. All chairs are 25% off. If you buy more than 5 chairs, you get an additional 1/3 off the discounted price of the number of chairs over 5. If you bought 8 chairs that were normally priced at $20, how much do the chairs cost in total?
A: You save $5 per chair with the 25% off sale. On sale chairs cost $15 each because 20 - 5 = 15. You bought 3 chairs above the 5 required before the extra savings starts because 8 - 5 = 3. You save an extra $5 on these chairs because 15 x (1 / 3) = 5. The first five chairs cost $75 in total because 5 x 15 = 75. The final three chairs cost $30 in total because 3 x 10 = 30. In total they cost $105 because 75 + 30 = 105. The answer is 105.
Question: A florist offers for sale 75 narcissus flowers and 90 chrysanthemums. Using all the flowers, how many bouquets containing 5 flowers each can he make?
Answer: The florist can make 75 / 5 = 15 bouquets of narcissus. The florist can make 90 / 5 = 18 bouquets of chrysanthemums. The florist can make 15 + 18 = 33 bouquets in total. The answer is 33.
[Question]Rick held a fundraiser and is figuring out who still owes money. He marked on a sheet how much everyone has promised to contribute, but he forgot to note how much some people had actually paid. Altogether, everyone has promised to contribute $400, and Rick has actually received $285. Sally, Amy, Derek, and Carl all still owe money. Sally and Carl both owe equal amounts, Amy owes $30, and Derek owes half as much as Amy. How much, in dollars, do Sally and Carl each owe?
[Answer]In total, Rick is still owed 400 - 285 = $115. Derek owes half as much as Amy, so he owes $30 / 2 = $15. This means that Sally and Carl owe a combined total of $115 - $30 – $15 = $70. As they owe equal amounts, they therefore owe $70 / 2 = $35 each. The answer is 35.
[Question]Jake splits 8 shots of vodka with his friend. Each shot of vodka is 1.5 ounces. If the vodka is 50% pure alcohol, how much pure alcohol did Jake drink?
[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
Jake drank 8 / 2 = 4 shots. So he drank 4 * 1.5 = 6 ounces of vodka. That means he drank 6 * .5 = 3 ounces of pure alcohol. The answer is 3.