There are a total of 20 + 15 = 35 balloons at the party. Out of the 35, 3 + 2 = 5 balloons burst. Thus, only 35 - 5 = 30 balloons are left.
The answer: 30
Reverse engineering the question: At a birthday party, there are 20 red balloons and 15 green balloons. Before the party started, 3 red and 2 green balloons burst. How many balloons are left?


Reasoning and answer: There are 4 co - workers and each of their meals is $12.00 so 4 * 12 = $48.00. They order 2 appetizers at $6.00 each so 2 * 6 = $12.00. The meals costs $48.00 and the appetizers costs $12.00 for a total of 48 + 12 = $60.00. A 20% tip on the $60.00 order is .20 * 60 = $12.00. So the meal is $60.00, the tip is $12.00 and he adds a $5.00 rush for a total of 60 + 12 + 5 = $77.00.
The answer: 77
What was the question?
Question: Bret and a team of 3 co-workers were working late so he ordered dinner for everyone. They decided on Chinese. Each main meal costs $12.0. They also ordered 2 appetizers that were $6.00 each. He includes a 20% tip and an extra $5.00 to make it a rush order. How much does Bret spend on dinner?


Let the number of years after which Agnes will be twice as old as Jane be x. After x years, 25 + x = 2(6 + x). Solving the equation by expanding and collecting like terms gives: x - 2x = 12 - 25. Further solving gives: - x =  - 13. Multiplying both sides by - 1 gives x = 13.
The answer: 13
Reverse engineering the question: Agnes is 25 years old and her daughter, Jane is 6 years old. In how many years will Agnes be twice as old as Jane?


Reasoning and answer: Betsy jumps half as long as Cindy, who jumps for 12 minutes so Betsy jumps 12 / 2 = 6 minutes. Tina jumps three times as long as Betsy, who jumps for 6 minutes so Tina jumps 3 * 6 = 18 minutes. Tina can jump for 18 minutes and Cindy and jump for 12 minutes so Tina can jump 18 - 12 = 6 minutes longer.
The answer: 6
What was the question?
Question: Cindy can jump rope for 12 minutes before tripping up on the ropes. Betsy can jump rope half as long as Cindy before tripping up, while Tina can jump three times as long as Betsy. How many more minutes can Tina jump rope than Cindy?


Since a dozen is equal to 12, then 3 dozen eggs are equal to 12 x 3 = 36 eggs. Tricia will use 36 x 1 / 4 = 9 eggs for making crepes. So there are 36 - 9 = 27 eggs left. 27 x 2 / 3 = 18 eggs will be used for making cupcakes. Thus, there are only 27 - 18 = 9 eggs left to make sunny - side - up eggs for breakfast.
The answer: 9
Reverse engineering the question: Tricia ordered three dozen eggs. She will use 1/4 of them for making crepes, and 2/3 of the remaining for making cupcakes. How many eggs are left to make sunny-side-up eggs for breakfast?


He buys a plain croissant for $3.50 and an almond croissant for $5.50 for a total of $3.50 + $5.50 = $9.00 on pastries per weekend. In one year, which is 52 weeks, he spends 52 * $9 = $468.00 on pastries.
The answer: 468
Reverse engineering the question:
Harrison buys a regular croissant on Saturdays for $3.50 and an almond croissant for $5.50 on Sundays. How much does he spend on croissants in a year?