His friend agrees to pay 200 * .25 = $50. So he needs to pay 200 - 50 = $150.
The answer: 150
Reverse engineering the question: James goes to pet smart to adopt a puppy. The adoption fee is $200 and his friend agrees to pay 25% of that. How much does James have to pay?


Reasoning and answer: Since there are 60 minutes in an hour, then Mr. Willson worked for 60 minutes x 3 / 4 = 45 minutes on Monday. He worked for 60 minutes / 2 = 30 minutes on Tuesday. He worked for 60 minutes x 2 / 3 = 40 minutes on Wednesday. He worked for 60 minutes x 5 / 6 = 50 minutes on Thursday. So Mr. Willson worked for 45 + 30 + 40 + 50 + 75 = 240 minutes. In hours, it is equal to 240 / 60 = 4 hours.
The answer: 4
What was the question?
Question: Mr. Willson worked on making his furniture for 3/4 an hour on Monday. On Tuesday, he worked for half an hour. Then he worked for 2/3 an hour on Wednesday and 5/6 of an hour on Thursday. If he worked for 75 minutes on Friday, how many hours in all did he work from Monday to Friday?


First find how far Glenda goes in 3 hours by multiplying her speed by the number of hours she travels: 3 hours * 8 miles / hour = 24 miles. Then do the same thing for Ann: 3 hours * 6 miles / hour = 18 miles. Now add the number of miles both people skated to find the total distance between them: 18 miles + 24 miles = 42 miles.
The answer: 42
Reverse engineering the question: Ann can skate 6 miles an hour. Her friend Glenda can skate 8 miles an hour. If they start in the same place and skate in straight lines in opposite directions for 3 hours, how many miles apart do they end up?


Reasoning and answer: Jasmine brought 20 - 5 = 15 cookies to class. Rachel brought 15 + 10 = 25 cookies to class. Mona, Jasmine, and Rachel brought 20 + 15 + 25 = 60 cookies.
The answer: 60
What was the question?
Question: Mona brought 20 cookies to share in class. Jasmine brought 5 fewer cookies than Mona. Rachel brought 10 more cookies than Jasmine. How many cookies altogether did Mona, Jasmine, and Rachel bring to share in class?


Since the company was contracted to build 4000 bollards on each side of a road, they were to install a total of 4000 * 2 = 8000 bollards on all sides of the road. The company was only able to install 3 / 4 * 8000 = 6000 bollards on all sides of the road. They required 8000 - 6000 = 2000 more bollards to install on all sides of the remaining part of the road.
The answer: 2000
Reverse engineering the question: After being contracted to build 4000 bollards on each side of a road, a company was only able to install 3/4 of the total number of bollards required on all sides of the road. How many more bollards are they required to install on all sides of the remaining part of the road?


Martha had 4 bottles of juice in the pantry + 4 bottles in the refrigerator = 8 bottles of juice. After Martha went shopping she added 5 bottles of juice to the + 8 bottles she already had = 13 bottles of juice. Martha and her family drank 3 bottles of juice during the week from the 13 they had, 13 - 3 = 10 bottles left.
The answer: 10
Reverse engineering the 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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After Martha went grocery shopping she had 4 bottles of juice in the refrigerator and 4 bottles in the pantry. During the week Martha bought 5 more bottles of juice. If Martha and her family drank 3 bottles of juice during the week, how many bottles are left?