Bill gives each of his children 3 apples, so since he has two children this is 3 * 2 = 6 apples. Jill bakes 2 apple pies, using 10 apples each so this means she uses 10 * 2 = 20 apples. In total, this means 20 + 6 = 26 apples were used. Since Bill began with 50 apples, this means there are 50 - 26 = 24 apples remaining.
The answer: 24
Reverse engineering the question: Bill picked 50 apples from the orchard with his wife and two children. He sends each of his kids to school with 3 apples for their two favorite teachers. His wife Jill bakes two apple pies, using 10 apples per pie. How many apples does Bill have left?


Reasoning and answer: He sells 500 * .8 = 400 newspapers. He sells them for 400 * 2 = $800. He gets a discount of 2 * .75 = $1.5 on the newspapers. So he buys them for 2 - 1.5 = $.5. So he spent 500 * .5 = $250 buying them. That means he made a profit of 800 - 250 = $550.
The answer: 550
What was the question?
Question: John buys 500 newspapers. Each newspaper sells for $2. He sells 80% of them. He buys them all for 75% less than the price at which he sells them. How much profit does he make?


If each line that Salem created in her poem has 8 words, the total number of words in a stanza, which is 10 lines, is 8 words / line * 10 lines / stanza = 80 words / stanza. With 20 stanzas, each containing 80 words per stanza, the total is 80 words / stanza * 20 stanzas = 1600 words in all the stanzas(poem).
The answer: 1600
Reverse engineering the question: Salem loves to write poems, and she always stores her poem in a creativity box kept safely in her home library. Last week, she created a poem with 20 stanzas. If each stanza has 10 lines, and each line has 8 words, calculate the total number of words in the poem.


Reasoning and answer: Einstein collected 15 x $12 = $180 for selling pizzas. He collected 40 x $0.30 = $12 for the 40 packs of potato fries. He collected 25 x $2 = $50 for the 25 cans of soda. Thus, the total amount section Einstein collected was $180 + $12 + $50 = $242. Therefore, Einstein needs $500 - $242 = $258 more to reach the goal.
The answer: 258
What was the question?
Question: To support the school outreach program, Einstein wants to raise $500 by selling snacks. One box of pizza sells for $12, a pack of potato fries sells for $0.30, and a can of soda at $2. Einstein sold 15 boxes of pizzas, 40 packs of potato fries, and 25 cans of soda. How much more money does Einstein need to raise to reach his goal?


There are 350 x 70 / 100 = 245 pine trees. Therefore, 350 - 245 = 105 trees are not pine trees.
The answer: 105
Reverse engineering the question: There are 350 trees in the park, 70% of which are pine trees. How many are not pine trees?


Cody needs to read 54 books - 6 books - 3 books = 45 books. Cody read 9 books each week after = 45 books / 9 books per week = 5 weeks. Cody read for 1 week + 1 week + 5 weeks = 7 weeks total.
The answer: 7
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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Cody was reading through his favorite book series. The series was 54 books in total. If Cody read 6 books the first week, and 3 books the second week and then 9 books every week after that. How many weeks did it take Cody to read his series?