Reasoning and answer: Since 2 students did not eat their animal crackers, 20 - 2 = 18 students ate their animal crackers. The students ate a total of 18 * 10 = 180 animal crackers.
The answer: 180
What was the question?
Question: Mrs. Gable’s third grade class is on a field trip to the beach. For lunch, Mrs. Gable brought 20 lunches for the 20 students in her class. She included a pack of animal crackers in each lunch bag for dessert. Each pack of animal crackers contained 10 animal crackers. If 2 students did not eat their animal crackers, how many animal crackers were eaten in total among Mrs. Gable’s students?


Since Drew got 20 questions right and 6 wrong, she was asked 20 + 6 = 26 questions. Carla got twice as many questions wrong as Drew got, a total of 2 * 6 = 12 questions wrong. The total number of questions that Carla was asked is 12 + 14 = 26. Altogether, there were 26 + 26 = 52 questions that were asked in the contest.
The answer: 52
Reverse engineering the question: In a spelling contest held in her school, Drew got 20 questions correct, winning her the competition. She got six questions wrong, and her competitor Carla got 14 questions correct, and twice as many questions wrong as the number of questions Drew got wrong. If each competitor was asked a different question, how many questions were asked in the competition?


Reasoning and answer: Margaret finished all of her laps in 10 minutes * 60 seconds = 600 seconds. Billy’s first 5 laps took 2 minutes * 60 seconds = 120 seconds. His next 3 laps took 4 minutes * 60 seconds = 240 seconds. His ninth lap took 1 minute * 60 seconds = 60 seconds. So his first 9 laps took 120 + 240 + 60 = 420 seconds. Billy finished swimming his laps before Margaret so all of his laps took a total of 600 – 30 = 570 seconds. This means that it took 570 seconds in total swimming time – 420 seconds in time spent swimming the first 9 laps = 150 seconds for Billy to swim his final lap.
The answer: 150
What was the question?
Question: Billy and Margaret are competing with each other to see who can swim 10 laps the fastest. Billy swims his first 5 laps in 2 minutes, swims the next 3 laps in 4 minutes, swims the next lap in 1 minute, then swims his final lap. Margaret finishes swimming all of her laps in 10 minutes. Billy wins the competition by finishing his laps 30 seconds before Margaret does. In seconds, how long did it take Billy to swim his final lap?


First figure out how many total calories come from the carrots by multiplying the calories per carrot by the number of carrots: 20 calories / carrot * 5 carrots = 100 calories. Then subtract the calories the kids have already eaten from the goal number of calories to find out how many more total calories they should eat: 750 calories - 400 calories - 100 calories = 250 calories. Then divide the total number of calories by the calories per cookie to find the number of cookies each kid gets: 250 calories / 50 calories / cookie = 5 cookies.
The answer: 5
Reverse engineering the question: Marissa is serving her kids lunch. Each kid gets a burger with 400 calories and 5 carrot sticks with 20 calories each, and some cookies with 50 calories each. Marissa wants each kid to eat a total of 750 calories for lunch. How many cookies does each kid get?


Reasoning and answer: Half of the 2 - hour practice is for running and weightlifting, so the time for running and weight lifting is 1 / 2 * 2 hours = 1 hour. If the time he lifts weights is x, then the time he runs is 2x. So the time for running and weight lifting is x + 2x = 3x = 1 hour. Thus 3x = 60 minutes. Thus x = 60 / 3 = 20 minutes spent weight lifting.
The answer: 20
What was the question?
Question: Kyle goes to basketball practice every day for 2 hours. At practice he spends half of the time shooting and the rest of the time running and weight lifting. If he runs for twice the time he spends weightlifting, how much time in minutes does he spend lifting weight?


Reasoning and answer: On Monday, Mack writes 60 / 30 = 2 pages. On Tuesday, Mack writes 45 / 15 = 3 pages. In total, from Monday to Wednesday, Mack writes 2 + 3 + 5 = 10 pages.
The answer: 10
What was the question?
Question:
On Monday, Mack writes in his journal for 60 minutes at a rate of 1 page every 30 minutes. On Tuesday, Mack writes in his journal for 45 minutes at a rate of 1 page every 15 minutes. On Wednesday, Mack writes 5 pages in his journal. How many pages total does Mack write in his journal from Monday to Wednesday?