30 students were asked to bring in 12 brownies so they will bring in 30 * 12 = 360 brownies. 20 students were asked to bring in 24 cookies each so that’s 20 * 24 = 480 cookies. 15 students were asked to bring in 12 donuts each so that’s 15 * 12 = 180 donuts. Together, they have 360 + 480 + 180 = 1,020 treats. If they sell all the treats for $2.00 each then they will make 1020 * 2 = $2,040.00.
The answer: 2040
Reverse engineering the question: For a class fundraiser, 30 students were asked to bring in 12 brownies each. 20 students were asked to bring in 24 cookies each and 15 students were asked to bring in 12 donuts each. If they sell everything for $2.00 each, how much money will they raise?


Reasoning and answer: If Ambika has four birthday candles, and Aniyah has 6 times as many birthday candles as Ambika, then Aniyah has 4 * 6 = 24 candles. When they put together the candles, the total number becomes 24 + 4 = 28 candles. When they divide the candles and share them equally, each person gets 28 / 2 = 14 birthday candles.
The answer: 14
What was the question?
Question: Aniyah has 6 times as many birthday candles as Ambika. If Ambika has four birthday candles, how many birthday candles will they have if they put the birthday candles together and shared them equally between themselves?


Walter has 1 / 4 * 56 bananas = 14 fewer bananas. If Jefferson has 56 bananas, then Walter has 56 bananas - 14 bananas = 42 bananas. When they combine their bananas, they have a total of 42 bananas + 56 bananas = 98 bananas. After dividing the bananas equally, Walter gets 98 bananas / 2 = 49 bananas.
The answer: 49
Reverse engineering the question: Jefferson has 56 bananas, while Walter, his friend, has 1/4 times fewer bananas. If they decide to combine their bananas and share them equally between themselves, how many bananas does Walter get?


Reasoning and answer: He makes $300 selling the books because 200 x 1.5 = 300. He spends $225 on records because 75 x 3 = 225. He has $75 left because 300 - 225 = 75.
The answer: 75
What was the question?
Question: Thomas owns 200 books. He decides to sell them and use the money to buy records. Each book sells for $1.5. A record costs $3. If he buys 75 records, how much money does he have left over?


The money he earned from an oil change is $20 x 5 = $ 100. The money he earned from the repair is $30 x 10 = $300. The money he earned from the car wash is $15 x 5 = $75. Therefore, Cid earned a total of $100 + $300 + $75 = $475.
The answer: 475
Reverse engineering the question: Cid owns a mechanic shop, he charges $20 for an oil change, $30 for a repair, and $5 for a car wash. How much money did he earn if he changed the oil of 5 cars, repaired 10 cars, and washed 15 cars?


First find the total time Carla spends peeling vegetables: 10 minutes * 3 = 30 minutes. Then add the time she spent sharpening her knife: 30 minutes + 10 minutes = 40 minutes.
The answer: 40
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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Carla spends 10 minutes sharpening her knife and 3 times that amount of time peeling vegetables. How much time does she spend on these activities total?