Reasoning and answer: The first spacecraft flew for 30 minutes, or 30 / 60 = 1 / 2 hour. The second spacecraft flew for 30 + 30 = 60 minutes, or 1 hour. Thus the first spacecraft traveled at a speed of 448 miles in 1 / 2 hour, or 448 / (1 / 2) = 896 miles per hour. The second spacecraft traveled 448 miles in 1 hour, or 448 / 1 = 448 miles per hour. The difference in speed, in miles per hour, between the two spacecraft was 896 - 448 = 448 miles per hour.
The answer: 448
What was the question?
Question: Two alien spacecraft on a sightseeing tour of Earth left New Orleans airport at 3:00 pm to travel the 448-mile distance to Dallas by air. Traveling nonstop, the first spacecraft landed in Dallas at 3:30 pm, while the second spacecraft landed in Dallas thirty minutes later. Assuming both spacecraft traveled at constant speed, what was the difference in speed, in miles per hour, between the two spacecraft?


The discount per one ticket is 10 * 30 / 100 = $3. So Dorothy's and her brother's tickets are cheaper by 2 * 3 = $6. Her family consists of 5 people, so the ticket cost stands at 5 * 10 = $50. Including the discount will lower the price to 50 - 6 = $44 in total. Dorothy will be left with 70 - 44 = $26.
The answer: 26
Reverse engineering the question: Dorothy is 15 years old and wants to go to a museum with her family. Her family consists of her, her younger brother, her parents, and her grandfather. The regular ticket cost is $10. People 18 years old or younger have a discount of 30%. How much money will Dorothy have after this trip, when she currently has $70?


Reasoning and answer: An even split is 50%. If the monthly subscription is $14, but I pay only 50% that means I pay every month $14 * 50% = $7. We know that in 1 year there are 12 months. Therefore if each month I pay $7, in 12 months I'd pay $7 * 12 = $84.
The answer: 84
What was the question?
Question: Your video streaming subscription costs $14 a month. If you're evenly splitting the cost with your friend, how much do you pay in total after the first year for this service?


Out of the 40, 40 x 1 / 10 = 4 students are absent. So, 40 - 4 = 36 students are present in school. Out of the 36, 36 x 3 / 4 = 27 students are in the classroom. This means, 36 - 27 = 9 students are in the canteen.
The answer: 9
Reverse engineering the question: There are 40 students in a class. If 1/10 are absent, 3/4 of the students who are present are in the classroom, and the rest are in the canteen, how many students are in the canteen?


Reasoning and answer: Alessia = 1.5 * 10 = 15 pounds. Alexei = 2.5 * 8 = 20 pounds. 15 + 20 = 35 pounds. Together they lost 35 pounds.
The answer: 35
What was the question?
Question: Aleesia lost 1.5 pounds each week for 10 weeks. Alexei lost 2.5 pounds each week for 8 weeks. How many pounds did the two friends combine to lose?


Reasoning and answer: His goal is 10 haircuts because 8 + 2 = 10. He is 80% there because (8 / 10) x 100 = 80.
The answer: 80
What was the question?
Question:

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.
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Calvin has been saving his hair clippings after each haircut to make a wig for his dog. He has gotten 8 haircuts and knows that he needs 2 more to reach his goal. What percentage towards his goal is he?