There are 13 - 1 = 12 stripes left. So there are 12 / 2 = 6 red stripes. So the total number of red stripes is 6 + 1 = 7 red stripes. So he has a total of 7 * 10 = 70 red stripes.
The answer: 70
Reverse engineering the question: On an American flag, the first stripe is red and half of the remaining stripes are also red. Each flag has 13 stripes. John buys 10 flags. How many red stripes are there?


Reasoning and answer: There were 15 pounds of rocks in the bucket because 60 / 4 = 15. There were 10 rocks in the bucket because 15 / 1.5 = 10.
The answer: 10
What was the question?
Question: Jim has a pail with rocks in it. The average weight of a rock is 1.5 pounds. A local rock collector agrees to pay him $4 for every pound of rocks. If he makes $60 off the sale, how many rocks were in the bucket?


He pays for 20 / 2 = 10 pounds of steaks. That cost 10 * 15 = $150.
The answer: 150
Reverse engineering the question: James buys steaks for buy one get one free. The price is $15 per pound and he buys 20 pounds. How much did he pay for the steaks?


Reasoning and answer: First find the total area of the forest: 4 miles * 6 miles = 24 square miles. Then find the total number of trees in that area: 600 trees / square mile * 24 square miles = 14400 trees. Then find the number of trees all the loggers can cut down in one day: 8 loggers * 6 trees / logger = 48 trees. Then divide the total number of trees by the number cut down per day to find the number of days it takes to clear the forest: 14400 trees / 48 trees / day = 300 days. Then divide the time in days by the number of days per month to find the time in months: 300 days / 30 days / month = 10 months.
The answer: 10
What was the question?
Question: One logger can cut down 6 trees per day. The forest is a rectangle measuring 4 miles by 6 miles, and each square mile has 600 trees. If there are 30 days in each month, how many months will it take 8 loggers to cut down all the trees?


The length of the highway that needs to be constructed is 650 – 200 = 450 miles. After the first day, there are still 450 – 50 = 400 miles that need to be constructed. On the second day, 50 miles * 3 = 150 miles are added to the highway. This means that 400 – 150 = 250 miles still need to be added to the highway.
The answer: 250
Reverse engineering the question: A highway is being extended from its current length of 200 miles up to 650 miles. 50 miles are built on the first day, and three times this amount are built on the second day. How many miles still need to be added to the highway to finish extending it?


For the humans in the house, there are 5 * 2 = 10 legs. Javier has a total of 2 + 1 = 3 four - legged pets. For the pets in the house, there are 3 * 4 = 12 legs. There are a total of 10 + 12 = 22 legs.
The answer: 22
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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Javier has a wife and 3 children. They have 2 dogs and 1 cat. Including Javier, how many legs are there in total in Javier’s household?