Question: A school has 15 classrooms. One-third of these classrooms have 30 desks in each classroom and the rest have 25 desks in each classroom. Only one student can sit at one desk. How many students can this school accommodate so that everyone has their own desk?
Answer: One - third of the classrooms have 30 desks, so there are 1 / 3 * 15 = 5 classrooms like that. The rest, which means 15 - 5 = 10 classrooms, have 25 desks. One - third of the classrooms can fit 5 * 30 = 150 students. The rest can fit 10 * 25 = 250 students. So in total, the school can be filled with 150 + 250 = 400 students. The answer is 400.
[Question]Venny spent $15000 on a used car which cost 40% of the original price. What was the original price of the car?
[Answer]Let x be the original price of the car. Then 40% * x = $15000. Thus x = $15000 / 0.4 = $37500. The answer is 37500.
Q: Meena bakes 5 dozen cookies for the school’s bake sale. She sells 2 dozen cookies to her biology teacher, Mr. Stone. Her friend Brock buys 7 cookies, and her friend Katy buys twice as many as Brock. How many cookies does Meena have left?
A: Meena bakes a total of 5 x 12 = 60 cookies. Mr. Stone buys 2 x 12 = 24 cookies. Brock buys 7 cookies, so Katy buys 2 x 7 = 14 cookies. Meena sells a total of 24 + 7 + 14 = 45 cookies. She has 60 - 45 = 15 cookies left. The answer is 15.
Question: Jenny had $24 left after spending 3/7 of her money. How much is half of her original amount of money?
Answer: Jenny spent 1 - 3 / 7 = 4 / 7 of her money. Since 4 / 7 is equal to $24, then 1 / 7 is equal to $24 / 4 = $6. So, Jenny originally had $6 x 7 = $42. Therefore, half of her original amount of money is $42 / 2 = $21. The answer is 21.
[Question]Dani brings two and half dozen cupcakes for her 2nd-grade class. There are 27 students (including Dani), 1 teacher, and 1 teacher’s aid. If 3 students called in sick that day, how many cupcakes are left after Dani gives one to everyone in the class?
[Answer]Dani brings 2.5 x 12 = 30 cupcakes. She needs this many cupcakes to feed everyone in class 27 + 2 = 29. With the 3 students calling in sick, there are this many people in class today 29 - 3 = 26. There are this many cupcakes left after everyone gets one 30 - 26 = 4 cupcakes. The answer is 4.
[Question]Pauline has 125 matchbox cars. They are all either convertibles, trucks, regular cars. 64% of them are regular cars. 8% are trucks. How many convertibles does she own?
[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
The trucks and regular cars make up 72% of her collection because 64 + 8 equals 72. This means convertibles make up 28% of her collection because 100 - 72 equals 28. She has 35 convertibles because 125 times .28 equals 35. The answer is 35.