Reasoning and answer: Lola and Dora together have $9 / person x 2 people = $18. After buying the deck of cards they had $18 - $10 = $8. With 8 dollars they bought $8 / $2 / pack = 4 packs of stickers. Dora received 4 packs / 2 people = 2 packs of stickers.
The answer: 2
What was the question?
Question: Lola and Dora combined their allowance of $9 each to buy a deck of playing cards for $10, they also bought $2 boxes of stickers and split the boxes evenly. How many packs of stickers did Dora get?


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?


Reasoning and answer: There are 5 ladies total in the group. They all walk 3 miles a day for 6 days so 3 * 6 = 18 miles. Jamie walks an additional 2 miles per day for 6 days so 2 * 6 = 12 miles. Sue walks half the distance of Jamie so 12 / 2 = 6 miles. Together, the ladies walk 18 + 12 + 6 = 36 miles.
The answer: 36
What was the question?
Question: Jamie is in a walking group with 4 other ladies. The ladies all walk 3 miles together. On top of that, Jamie walks an additional 2 miles per day for 6 days while her friend Sue walks half that amount in 6 days. If they walk this same route 6 days a week, how many miles do the ladies walk in total?


The total number of panels required is 20 * 10 = 200 panels. When 50 failed to be delivered, the total number available for use became 200 - 50 = 150 panels. If each home requires 10 panels, the number of homes that had panels installed is 150 / 10 = 15 homes.
The answer: 15
Reverse engineering the question: Faith's neighborhood, with a total of 20 homes, decided to install solar panels. Each home needed 10 panels capable of providing their power needs. The supplier of the panels brought 50 panels less than the required amount. The neighbors agreed to only install the panels up to where they'd be finished. How many homes had their panels installed?


Reasoning and answer: If each serving size is 2 capsules, a 60 - capsule bottle of vitamin D3 would contain 60 / 2 = 30 servings. Using 30 - serving bottles, to last 180 days, it would take 180 / 30 = 6 bottles of vitamin D3.
The answer: 6
What was the question?
Question: The doctor told Barry to take vitamin D3 for 180 days to help protect him from infections. The pharmacy only sold vitamin D3 in bottles containing 60 capsules, with a daily serving size of 2 capsules. How many bottles would Barry need to buy to have enough servings to last for 180 days?


Reasoning and answer: Let x be the number of pens bought. He bought 12 + 5x pencils. x + (12 + 5x) = 108. 6x + 12 = 108. 6x = 96. x = 16 pens.
The answer: 16
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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Issac has to buy pens and pencils for the upcoming school year. Issac buys 108 writing utensils total. He buys 12 more than 5 times the number of pencils than pens. How many pens did Issac buy?