Reasoning and answer: First find how many ounces of carbon dioxide are released per shopping trip: 8 bags / trip * 4 oz / bag = 32 oz / trip. Then divide that amount by the number of ounces per pound to find the pounds of carbon per shopping trip: 32 oz / trip / 16 oz / pound = 2 pounds / trip. Then divide the amount of carbon used to make the tote bag by the amount of carbon saved per shopping trip to find the number of trips needed for the bag to be a better option: 600 pounds / 2 pounds / trip = 300 trips.
The answer: 300
What was the question?
Question: Marla is thinking about getting a canvas tote bag to avoid using plastic bags at the grocery store. If making the canvas bag released 600 pounds of carbon dioxide, each plastic bag released 4 ounces of carbon dioxide, and Marla uses eight bags per shopping trips, how many shopping trips will she have to make before the canvas bag is the lower-carbon solution? (There are 16 ounces in a pound.)


She was left with 3 - 2 = 1 bag of chocolate after she gave 2 bags to her brother and sisters. Therefore, the total number of bags of chocolates left after buying another 3 is 1 + 3 = 4.
The answer: 4
Reverse engineering the question: Robie bought 3 bags of chocolates. She gave the 2 bags to her brothers and sisters then bought another 3 bags. How many bags of chocolates were left?


Reasoning and answer: First find how many corn plants there are: 15 plants / row * 4 rows = 60 plants. Then find how many gallons of water of the corn needs: 60 plants * 1 / 2 gallon / plant = 30 gallons. Then find how many gallons of water the pigs need: 10 pigs * 4 gallons / pig = 40 gallons. Then find how many gallons of water the ducks need: 20 ducks * 1 / 4 gallon / duck = 5 gallons. Now add up all three quantities of water to find the total water needed: 5 gallons + 40 gallons + 30 gallons = 75 gallons. Now divide the total water needed by Casey's pumping rate to find how long she spends pumping: 75 gallons / 3 gallons / minute = 25 minutes.
The answer: 25
What was the question?
Question: Casey is pumping water out of her well. She can pump 3 gallons a minute. She has 4 rows of 15 corn plants each, and each plant needs half a gallon of water. She also has 10 pigs, which each need 4 gallons of water, and 20 ducks that each need a quarter of a gallon of water. How many minutes does Casey need to spend pumping water?


Let X be the price of the borrowed amount. The interest is X * .12 = $1500. So the borrowed amount is X = $1500 / .12 = $12500.
The answer: 12500
Reverse engineering the question: A person borrowed an amount of money for a year at an interest rate of 12%. If the total interest is $1500, what was the original borrowed amount?


Reasoning and answer: Mark gave Sally 36 / 3 = 12 fries. After that Sally has 14 + 12 = 26 fries.
The answer: 26
What was the question?
Question: Sally had 14 fries at lunch. Her friend Mark gave her one-third of his 36 fries at lunch. How many fries did Sally have for lunch after that?


Reasoning and answer: 100 - 40 = 60 percent of students are remaining. 60 / 2 = 30 percent are present in school.
The answer: 30
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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Forty percent of the students have elected to learn from home during the pandemic. The remaining students are divided into two equal groups, only one of which is physically in school on any day. What percent of students are present in school?