Reasoning and answer: In 7 years, Kaylee will be 5 * 3 = 15 years old. Let x be the age Kaylee is now. After 7 years, Kaylle will be 15 years old, so x + 7 = 15. x = 15 - 7. x = 8 years old.
The answer: 8
What was the question?
Question: In 7 years, Kaylee will be 3 times as old as Matt is now. If Matt is currently 5 years old, how old is Kaylee now?


The total height of the first to 100th floor is 100 x 16.5 = 1650 feet. Hence, the 101st floor is 1673 - 1650 = 23 feet high.
The answer: 23
Reverse engineering the question: Taipei 101 in Taiwan is 1,673 feet tall with 101 floors. Suppose the first to 100th floors have height each equal to 16.5 feet, how high is the 101st floor?


Reasoning and answer: In one round trip, traveling to and from the building materials location, one bird covers 2 * 200 = 400 miles. If in one round trip one bird covers 400 miles, in 10 round trips, it covers 400 * 10 = 4000 miles. Since there were two birds collecting the materials, they covered a combined 4000 + 4000 = 8000 miles collecting the building materials in 10 round trips.
The answer: 8000
What was the question?
Question: Two birds making a nest each made 10 round trips collecting building materials. If the building materials were located 200 miles from where they were building the nest, what is the total distance the birds covered in the trips?


Nick has made 20 * $10 = $200 from the chocolate oranges. This means he needs to raise another $1000 - $200 = $800. He needs to sell a total of $800 / $5 = 160 candy bars to reach his goal.
The answer: 160
Reverse engineering the question: Nick is trying to raise money for a charity. He is selling candy bars for $5. He is also selling chocolate oranges for $10. He wants to raise $1000. He only had 20 chocolate oranges that he sold out. How many candy bars does Nick need to sell to reach his goal?


Reasoning and answer: She needs 5 backpacks that are $20.00 each so that's 5 * 20 = $100.00. The backpacks are currently 20% off so that's 100 * .20 = $20.00 off. The backpacks costs $100.00 but are $20.00 off so they will cost $100 - $20 = $80.00. She wants each of the 5 backpacks to have her grandchild's name monogramed on them which costs $12.00 each so that's 5 * $12 = $60.00. The backpacks cost $80.00 and the monogramming costs $60.00 so together they will cost $80 + $60 = $140.00.
The answer: 140
What was the question?
Question: Grandma wants to order 5 personalized backpacks for each of her grandchildren's first days of school. The backpacks are 20% off of $20.00 and having their names monogrammed on the back pack will cost $12.00 each. How much will the backpacks cost?


Reasoning and answer: If x is Maria's age, then Mario's age is x + 1. The equation that represents the sum of their ages is x + x + 1 = 7. By combining like terms, the equation becomes 2x = 6. Hence, the value of x which represents the age of Maria is 6 / 2 = 3. So Mariu is 3 + 1 = 4 years old.
The answer: 4
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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The sum of Mario and Maria's ages now is 7. Mario is 1 year older than Maria. How old is Mario?