Question: Josh gets together with 7 friends. Everyone including him puts 5 dollars into a pot. First place gets 80% of the money. Second and third place split the rest. How much money does third place get?
Answer: 7 + 1 = 8 people threw money into the pot. So the amount of money in the pot is 8 * 5 = $40. First place gets 40 * .8 = $32. So there is 40 - 32 = $8 left in the pot after first place gets his cut. So third place gets 8 / 2 = $4. The answer is 4.
[Question]Nick is trying to raise money for a charity. He is selling candy bars for $5. He is also selling chocolate oranges for $10. He wants to raise $1000. He only had 20 chocolate oranges that he sold out. How many candy bars does Nick need to sell to reach his goal?
[Answer]Nick has made 20 * $10 = $200 from the chocolate oranges. This means he needs to raise another $1000 - $200 = $800. He needs to sell a total of $800 / $5 = 160 candy bars to reach his goal. The answer is 160.
Q: Mark is 18 years old. He has a little brother, John, who is 10 years younger. If John and Mark's parents are currently 5 times older than John, how old were they when Mark was born?
A: John is 8 years old because 18 - 10 = 8 years old. Their parents are currently 40 years old because 8 * 5 = 40. Therefore, they were 22 when Mark was born because 40 - 18 = 22 years old. The answer is 22.
Question: When Doctor Lindsay works in her office, she usually sees 4 adult patients and 3 child patients every hour. If the cost for an adult's office visit is $50, and the cost for a child's office visit is $25, how much money, in dollars, does Doctor Lyndsay receive in a typical 8-hour day for seeing all her patients?
Answer: For 4 adult patients per hour, Dr. Lindsay receives 4 * 50 = 200 dollars per hour. For the 3 child patients per hour, Dr. Lindsay receives 3 * 25 = 75 dollars per hour. Thus, Dr. Lindsay receives 200 + 75 = 275 dollars per hour. In an 8 - hour day, Dr. Lindsay receives 8 * 275 = 2200 dollars. The answer is 2200.
[Question]Melanie has twice as many cats as Annie, and Annie has three times fewer cats than Jacob. If Jacob has 90 cats, how many cats does Melanie have?
[Answer]Annie has 90 / 3 = 30 cats. Melanie has 30 * 2 = 60 cats. The answer is 60.
[Question]Greta received 10 more letters in the mail than her brother. Greta's mother received twice the total number of letters Greta and her brother received. Calculate the total number of letters the three received if Greta's brother received 40 letters.
[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
Since Greta's brother received 40 letters, Greta received 40 + 10 = 50 letters. Together, Greta and her brother received 50 + 40 = 90 letters. Greta's mother received twice the total number of letters Greta and her brother received, which totals 90 * 2 = 180 letters. In total, the three received 90 + 180 = 270 letters. The answer is 270.