Tommy and Jessie have 3 + 3 = 6 cars. Jessie's brother has 5 + 6 = 11 cars. Altogether, they have 6 + 11 = 17 cars.
The answer: 17
Reverse engineering the question: Tommy has 3 toy cars. His neighbor, Jessie, has 3 cars too. Jessie's older brother has 5 more cars than Tommy and Jessie. How many cars do the three of them have altogether?


Reasoning and answer: Yes RSVP responses are 200 x 83% = 166 guests. No RSVP responses are 200 x 9% = 18 guests. Guests who responded are 166 + 18 = 184. Guests who did not respond at all are 200 - 184 = 16.
The answer: 16
What was the question?
Question: Sean and Sierra invited 200 guests to their wedding. If 83% of the guests RSVP with a Yes response and 9% of the guests RSVP with a No response, how many guests did not respond at all?


Frodo has 8 tennis balls more than Lily (who has 3), so he has 8 + 3 = 11 tennis balls. Brian has twice as many as Frodo, which makes 11 * 2 = 22 tennis balls.
The answer: 22
Reverse engineering the question: Brian has twice as many tennis balls as Frodo, who has 8 more than Lily. If Lily has 3 tennis balls, how many does Brian have?


Reasoning and answer: The first round will result in 1000 * 10% = 100 employee layoffs. There are 1000 - 100 = 900 employees remaining. The second round will result in 900 * 10% = 90 employee layoffs. There are 900 - 90 = 810 employees remaining. The third round will result in 810 * 10% = 81 employee layoffs. The total number of of employees laid off is 100 + 90 + 81 = 271.
The answer: 271
What was the question?
Question: A company has 1000 employees. There will be three rounds of layoffs. For each round of layoff, 10% of the remaining employees will be laid off. How many employees will be laid off in total?


Andrew received 100 x 1 / 5 = 20 stickers. So, there were 100 - 20 = 80 stickers left. Bill received 80 x 3 / 10 = 24 stickers. Therefore, Andrew gave away 20 + 24 = 44 stickers.
The answer: 44
Reverse engineering the question: Zander collected 100 stickers. He gave some of his stickers to his two friends, Andrew and Bill. Andrew received 1/5 of Zander's stickers, while Bill received 3/10 of the remaining stickers. How many stickers did Andrew give to his two friends?


Kenny ran for 10 * 2 = 20 hours. Kenny practiced the trumpet for 20 * 2 = 40 hours.
The answer: 40
Reverse engineering the question:
Kenny played 10 hours of basketball last week. He ran for twice as long as he played basketball, and he practiced on the trumpet for twice as long as he ran. How many hours did Kenny practice on the trumpet last week?