Reasoning and answer: He swam 2 * 2 = 4 miles. He ran for 2 / 2 = 1 hour. His running speed was 2 * 4 = 8 mph. So he ran 8 * 1 = 8 miles. So his total distance was 8 + 4 = 12 miles.
The answer: 12
What was the question?
Question: Tom swims for 2 hours at a speed of 2 miles per hour. He then runs for half the time at 4 times the speed. How many miles did he cover?


In the first four houses, there are a total of 4 houses * 3 gnomes = 12 gnomes. Therefore, the fifth house had 20 total gnomes – 12 gnomes = 8 gnomes.
The answer: 8
Reverse engineering the question: There are 5 houses on a street, and each of the first four houses has 3 gnomes in the garden. If there are a total of 20 gnomes on the street, how many gnomes does the fifth house have?


Reasoning and answer: Benny spent 2 * $4 = $8 on soft drinks. Benny spent a total of $28 - $8 on soft drinks = $20 on candy bars. Benny spent $20 / 5 candy bars = $4 for each candy bar.
The answer: 4
What was the question?
Question: Benny bought 2 soft drinks for$ 4 each and 5 candy bars. He spent a total of 28 dollars. How much did each candy bar cost?


First, we need to determine the length of John's workday if he decides to earn the bonus. We do this by performing 8 + 2 = 10 hours for his workday. Next, we need to determine his overall pay. We do this by performing 80 + 20 = 100 dollars a day. We then determine John's hourly rate by dividing his pay by the number of hours worked, performing 100 / 10 = 10 dollars an hour.
The answer: 10
Reverse engineering the question: John works a job that offers performance bonuses. He makes $80 a day and works for 8 hours. He has the option of working hard to earn the performance bonus of an extra $20 a day, but the extra effort results in a 2-hour longer workday. How much does John make per hour if he decides to earn the bonus?


Reasoning and answer: 8 boys + 8 girls = 16 students joined the field trip. Thus, 18 - 16 = 2 girls were not able to join the field trip.
The answer: 2
What was the question?
Question: There were 18 students assigned in a minibus for a field trip. Eight of these students were boys. On the day of the field trip, the number of girls and boys was the same since some of the girls were not able to join the trip. How many girls were not able to join the field trip?


Reasoning and answer: Kylie makes 10 + 2 = 12 beaded necklaces. The number of beads used for the necklaces is 12 * 20 = 240 beads. The number of beads used for the bracelets is 5 * 10 = 50 beads. The number of beads used for the earrings is 7 * 5 = 35 beads. The total number of beads used is 240 + 50 + 35 = 325 beads.
The answer: 325
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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Kylie makes 10 beaded necklaces on Monday and 2 beaded necklaces on Tuesday. Then Kylie makes 5 beaded bracelets and 7 beaded earrings on Wednesday. 20 beads are needed to make one beaded necklace. 10 beads are needed to make one beaded bracelet. 5 beads are needed to make one beaded earring. How many beads does Kylie use in total to make her jewelry?