Reasoning and answer: On Thursday, Monica studied for 3 * 2 = 6 hours. On Friday, Monica studied half as much, so 6 / 2 = 3 hours. Till the weekend, Monica studied in total for 2 + 6 + 3 = 11 hours. That means, on the weekend Monica studied the same amount of time, so in total, she studied for 11 + 11 = 22 hours.
The answer: 22
What was the question?
Question: Monica way studying for an exam. She studied for 2 hours on Wednesday and three times as long on Thursday. On Friday Monica studied half of the time she studied on Thursday. During the weekend (two days) Monica studied as much again as Wednesday, Thursday and Friday combined. How much time did she spend studying in total during the five days?

Reasoning and answer: 1 roll can wrap 5 shirt boxes and he has 20 shirts boxes to wrap so he needs 20 / 5 = 4 rolls of wrap. 1 roll can wrap 3 XL boxes and he has 12 XL boxes to wrap so he needs 12 / 3 = 4 rolls or wrap. All total he needs 4 + 4 = 8 rolls of wrap. Each roll costs $4.00 and he needs 8 rolls so it will cost him 4 * 8 = $32.00 in wrapping paper.
The answer: 32
What was the question?
Question: Harold's fancy wrapping paper can wrap 5 shirt boxes or 3 XL boxes. For the upcoming holiday, he has 20 shirt boxes to wrap and 12 XL boxes to wrap. If each roll of wrapping paper costs $4.00 per roll, how much will he spend to wrap all of the boxes?

Reasoning and answer: Michael has used a total of 30 matchstick houses * 10 matchsticks per matchstick house = 300 matchsticks. As he only used half of his collection for crafting, he must have originally had 300 matchsticks * 2 = 600 matchsticks.
The answer: 600
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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Michael has a lot of matchsticks at home and decides to use them to make miniature models. As he is about to start crafting, he has second thoughts and decides to only use half of his pile of matchsticks. He creates 30 matchsticks houses. If he has now used all of the matchsticks he intended to and each matchstick house uses 10 matchsticks, how many matchsticks did Michael have originally?