Avery has a total of 20 * 6 = 120 eggs. Avery can fill up 120 / 12 = 10 egg cartons.
The answer: 10
Reverse engineering the question: Avery has 20 chickens on his farm. Each chicken lays 6 eggs. He wants to fill up egg cartons with eggs. If each egg carton can hold a dozen (12 eggs), how many egg cartons can Avery fill?
Reasoning and answer: Meso types 15 pages / 5 minutes = 3 page per minute. Tyler types 15 pages / 3 minutes = 5 pages per minute. Together they can type 3 + 5 = 8 pages per minute. Working together, it would take them 40 pages / 8 pages per minute = 5 minutes.
The answer: 5
What was the question?
Question: Meso can type 15 pages in 5 minutes. Tyler can type the same 15 pages in 3 minutes. How many minutes would it take Meso and Tyler to type 40 pages working together?
Twice the number of students present in the science class yesterday is 70 * 2 = 140. Ten percent less than twice the number of students present in the class yesterday means there are 10 / 100 * 140 = 14 fewer students than twice the number present yesterday. The number of students present in the science class today is 140 - 14 = 126. If the total number of registered students for the course who are absent today is 30, a full class of the science course has 126 + 30 = 156 students.
The answer: 156
Reverse engineering the question: Ten percent less than twice the total number of students present in the science class yesterday have attended class today. If there were 70 students in the class yesterday and 30 students are absent today, calculate the number of students registered for the course.
Reasoning and answer: The total number of packages is 3 + 10 + 8 = 21. Julia bought 21 19 = 399 balls.
The answer: 399
What was the question?
Question: Julia bought 3 packs of red balls, 10 packs of yellow balls, and 8 packs of green balls. There were 19 balls in each package. How many balls did Julie buy in all?
Out of 100 attendees, 100 x 50 / 100 = 50 are women. While 100 x 35 / 100 = 35 are men. So there were a total of 50 + 35 = 85 men and women who attended the party. Thus, 100 - 85 = 15 children attended the party.
The answer: 15
Reverse engineering the question: One hundred people attended a party. Fifty percent of the attendees are women, thirty-five percent of them are men, and the rest are children. How many children attended the party?
Each load takes 60 + 45 = 105 minutes. There are 8 loads that take 8 * 105 = 840 minutes. It takes 840 / 60 = 14 hours.
The answer: 14
Reverse engineering the question:
There are 8 loads of laundry that need to be washed. Each load of laundry takes around 45 minutes to complete in the wash cycle and 1 hour in the dry cycle. How long, in hours, will it take to complete the entire set of laundry?