Since a dozen has 12 eggs, the total number of eggs that Addilynn bought is 6 dozen * 12 eggs / dozen = 72 eggs. If she used half of the eggs, the number of eggs left is 72 eggs / 2 = 36 eggs. While moving the eggs to clean the shelves, she broke 15 eggs, leaving 36 eggs - 15 eggs = 21 eggs.
The answer: 21
Reverse engineering the question: Addilynn went to the grocery store and bought six dozen eggs for use in her house. After two weeks, she used half of the eggs, then accidentally broke 15 of the remaining eggs while moving them to clean the shelves. How many eggs are left on the shelf?


Reasoning and answer: Max finished history in 20 * 2 = 40 minutes. Finishing geography took the most time, which is 40 * 3 = 120 minutes. In total, for all three subjects, Max needed 20 + 40 + 120 = 180 minutes.
The answer: 180
What was the question?
Question: Max was doing homework in three different subjects. It took him 20 minutes to finish tasks from biology and two times more time to finish history. Geography took him the most time, three times more than history. How much time did Max spend on doing his homework?


Tom’s fruit bowl contains 3 + 6 = 9 fruits. After Tom eats 3 fruits, 9 - 3 = 6 fruits remain in the bowl.
The answer: 6
Reverse engineering the question: Tom's fruit bowl contains 3 oranges and 6 lemons. After Tom eats 3 of the fruits, how many fruits remain in Tom's fruit bowl?


Reasoning and answer: On weekdays he eats 5 * 2 = 10 chocolates. On weekends he eats 2 * 1 = 2 chocolates. He eats 10 + 2 = 12 chocolates in a week. It takes 24 / 12 = 2 weeks to finish all the chocolate.
The answer: 2
What was the question?
Question: Erwin eats 2 chocolates on weekdays and 1 chocolate on weekends. He ate 24 chocolates in total. How many weeks did it take to finish all the chocolate?


On Trey's list there are 7 + 1 + 4 things to do = 12 things to do in total. Each thing takes 10 minutes to do, so 10 minutes x 12 things = 120 minutes. An hour has 60 minutes in it, so 120 minutes / 60 minutes in an hour = 2 total hours it will take Trey to complete his list.
The answer: 2
Reverse engineering the question: On Sunday Trey is going to do some chores at home. First, he wants to make a To Do list and count up how many things he has to do that day and how long it should take. He has several items under 'clean the house,' 'take a shower' and then 'make dinner.' In total there are 7 things to do to clean the house; 1 thing to do to take a shower; and 4 things to do to make dinner. If everything on Trey's list takes 10 minutes to do, how many hours total will it take to complete Trey's list?


He volunteers 2 * 12 = 24 times a year. So he volunteers for 24 * 3 = 72 hours.
The answer: 72
Reverse engineering the question:
John volunteers at a shelter twice a month for 3 hours at a time. How many hours does he volunteer per year?