There are 7 days in a week and she needs apples for 2 weeks so that's 7 * 2 = 14 days. She shares an apple with her dog every day so for 14 days so she needs 1 * 14 = 14 apples. Each apple weighs 1 / 4 of a pound and she needs 14 apples so that's .25 * 14 = 3.5 pounds of apples. She needs 3.5 pounds of apples and they are on sale for $2.00 a pound so she will spend 3.5 * 2 = $7.00 for apples.
The answer: 7
Reverse engineering the question: Irene shares half of a small apple with her dog every day. A small apple weighs about 1/4 of a pound. She can currently buy apples for $2.00 a pound. How much will she spend so that she and her dog have enough apples to last for 2 weeks?


Reasoning and answer: There are 16 / 2 = 8 blue gumballs. There are 8 * 4 = 32 green gumballs. There are 16 + 32 + 8 = 56 total gumballs.
The answer: 56
What was the question?
Question: A gumball machine has red, green, and blue gumballs. The machine has half as many blue gumballs as red gumballs. For each blue gumball, the machine has 4 times as many green gumballs. If the machine has 16 red gumballs how many gumballs are in the machine?


The teacher brings 14 bars to school because 7 x 2 = 14. There are 21 total bars of chocolate because 7 + 14 = 21. There are 168 total squares of chocolate because 21 x 8 = 168. Each student gets 7 squares because 168 / 24 = 7.
The answer: 7
Reverse engineering the question: Gerald brings chocolate bars to school for his class to share. Each bar contains 8 squares. He brings 7 total bars. His teacher says that for every bar he brings, she will bring two more identical ones. There are 24 students in class. How many squares of chocolate does each student get?


Reasoning and answer: Adding Harry's $200 to the initial value, the bid is at 300 + 200 = $500. The second bidder doubles the previous value, reaching a value of 500 * 2 = $1000. The third bidder adds three times the value of Harry's, then adds 500 * 3 = $1500. Adding the $1500 to the value of the second bid, the bid is at 1500 + 1000 = $2500. With the final bid of $4000, Harry bids 4000 - 2500 = $1500 more than the third bidder.
The answer: 1500
What was the question?
Question: Harry participates in the auction of a classic painting. The auction starts at $300, Harry is the first to bid, adding $200 to the starting value, a second bidder doubles the bid, and a third bidder adds three times Harry's bid. Finally, Harry bids $4,000. By how much did Harry's final bid exceed that of the third bidder?


He dances 4 * 2 = 8 hours per week. He dances for 52 * 10 = 520 weeks. So in total he danced for 8 * 520 = 4160 hours.
The answer: 4160
Reverse engineering the question: Tom dances 4 times a week for 2 hours at a time and does this every year for 10 years. How many hours did he dance?


Her son has 3 teachers and her daughter has 4, so together they have 3 + 4 = 7 teachers. Harper has already spent $70 on 7 gifts, so she spent $70 / 7 = $10 per gift.
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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Harper needs to buy teacher appreciation gifts for her children’s teachers. Her son has 3 different teachers and her daughter has 4. If she spent $70 on gifts, how much did each gift cost?