Reasoning and answer: Bea's sales amount to $0.25 / glass x 10 glasses = 250 cents. Dawn's sales amount to $0.28 / glass x 8 glasses = 224 cents. So, Bea earned $2.50 - $2.24 = 26 cents more than Dawn.
The answer: 26
What was the question?
Question: Bea and Dawn both have a lemonade stand. Bea sells her lemonade at 25 cents while Dawn sells hers at 28 cents. If Bea sold 10 glasses and Dawn sold 8 glasses, how much more money (in cents) did Bea earn than Dawn?


Matthias has 40 - 30 = 10 soccer balls without holes. Matthias has 15 - 7 = 8 basketballs without holes. A total of 10 + 8 = 18 balls do not have holes.
The answer: 18
Reverse engineering the question: Matthias has 40 soccer balls and 15 basketballs. 30 soccer balls and 7 basketballs have a hole in them. How many balls in total does Matthias have without holes in them?


Reasoning and answer: Kingsley and her four friends sum up to 4 + 1 = 5 students carrying chairs. The number of chairs carried by each student after all the trips is 10 * 5 = 50. Since each student carried 50 chairs, the total number in the hall is 50 * 5 = 250.
The answer: 250
What was the question?
Question: Kingsley's teacher instructed her to find four friends to help her carry some chairs to the school hall to be used for an upcoming event. If each student carried 5 chairs per trip and made 10 trips in total, what's the total number of chairs taken to the hall?


First find how many MB are left to download: 880 MB - 310 MB = 570 MB. Then divide that number by the download speed to find the download time: 570 MB / 3 MB / minute = 190 minutes.
The answer: 190
Reverse engineering the question: Mason is trying to download a 880 MB game to his phone. After downloading 310 MB, his Internet connection slows to 3 MB/minute. How many more minutes will it take him to download the game?


Reasoning and answer: Four feet six inches is the same as 4.5 feet tall. If Frank is 0.5 feet taller than Pepe, then he is 4.5 + 0.5 = 5 feet tall. If Larry is one foot taller than Frank, then he is 5 + 1 = 6 feet tall. If Ben is one foot taller than Larry, then he is 6 + 1 = 7 feet tall. If Big Joe is one foot taller than Ben, then he is 7 + 1 = 8 feet tall.
The answer: 8
What was the question?
Question: Big Joe is the tallest player on the basketball team. He is one foot taller than Ben, who is one foot taller than Larry, who is one foot taller than Frank, who is half a foot taller than Pepe. If Pepe is 4 feet six inches tall, how tall is Big Joe, in feet?


Reasoning and answer: He bought 3 * 20 = $60 of books a month. That means he bought 60 * 12 = $720 of books a year. So he lost 720 - 500 = $220.
The answer: 220
What was the question?
Question:
Jack bought 3 books a month at $20 each. He sells them back at the end of the year for $500. How much money did he lose?