Q: A train travels 360 miles in 3 hours. At the same rate, how many additional hours would it take to travel an additional 240 miles?
A: The rate is 360 / 3 = 120 mph. Then it would take 240 / 120 = 2 additional hours. The answer is 2.
Question: John buys 3 dress shirts. They sell for $20 each. He also has to pay 10% tax on everything. How much did he pay in total?
Answer: The shirts cost 3 * $20 = $60 before tax. The tax cost $60 * .1 = $6. So in total they paid $60 + $6 = $66. The answer is 66.
[Question]Rita bought 5 short dresses, 3 pairs of pants and 4 jackets from a store that sells second-hand clothes. The dresses cost $20 each, the pants cost $12, the jackets cost $30 each, and she spent an additional $5 on transportation. If she had $400 initially, how much does she have now?
[Answer]She bought 5 dresses at $20 each for a total of 5 * $20 = $100. She bought 3 pairs of pants at $12 each for a total of 3 * $12 = $36. She bought 4 jackets at $30 each for a total of 4 * $30 = $120. She spent an additional $5 on transportation for a sum total of $5 + $100 + $36 + $120 = $261. She initially had $400 so she now has $400 - $261 = $139. The answer is 139.
Q: John decides to replace all his VHS with DVDs. He can trade in his VHS for $2 each and then buy the DVDs for $10 each. If he has 100 movies, how much does it cost to replace his movies?
A: It cost 10 - 2 = $8 to replace each movie. So it would cost 8 * 100 = $800 to replace everything. The answer is 800.
Question: Maddy is in college for 8 semesters. She needs 120 credits to graduate. If each class is 3 credits, how many classes does she need to take per semester?
Answer: 120 credits / 3 credits is 40. 40 credits / 8 semester = 5 classes per semester. Maddy needs to take 5 classes per semester. The answer is 5.
Q: Jerry, Gabriel, and Jaxon ask their parents to buy them toys to play with. Jerry is bought 8 more toys than Gabriel, but Gabriel has twice as many toys as Jaxon. If Jaxon got 15 toys, what's the total number of toys they all have?
A:

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
Jaxon has 15 toys. Gabriel has twice Jaxon's, Gabriel got 2 * 15 = 30 toys. Jerry got 8 more toys than Gabriel, which is 30 + 8 = 38 toys. Jaxon's toys plus Gabriel's toys plus Jerry's toys is 15 + 30 + 38 = 83 toys. The answer is 83.