The small panda bears eat a total of 4 x 25 = 100 pounds of bamboo every day. The bigger panda bears eat a total of 5 x 40 = 200 pounds of bamboo every day. So, the 9 pandas eat a total of 100 + 200 = 300 pounds of bamboo every day. Therefore, they eat a total of 300 x 7 = 2100 pounds in a week.
The answer: 2100
Reverse engineering the question: Four small panda bears and five bigger panda bears eat 25 pounds and 40 pounds of fresh bamboo sprouts every day, respectively. How many pounds of bamboo do the 9 pandas eat in a week?


Reasoning and answer: Madeline's brother has $48 / 2 = $24. Together, they have $48 + $24 = $72.
The answer: 72
What was the question?
Question: Madeline has $48 and her brother has half as much. How much do they have together?


Each pack contains 30 / 3 = 10 spoons. So he needs to buy 50 / 10 = 5 packs.
The answer: 5
Reverse engineering the question: John decides to buy utensils. They come in 30 packs with an equal number of knives, forks, and spoons. How many packs does he need to buy if he wants 50 spoons?


Reasoning and answer: Last year, Bob's salary was equal to three times Mario's salary this year, meaning Bob was earning 3 * $4000 = $12000. If Bob's salary increased by 20% this year, he is earning 20 / 100 * $12000 = $2400 more. Bob's total salary this year is $12000 + $2400 = $14400.
The answer: 14400
What was the question?
Question: Mario's salary increased by 40% to $4000 this year. Bob's salary from last year was equal to three times Mario's salary this year. If Bob's current salary is 20% more than his salary last year, what is his current salary?


If sharks are twice the number of stingrays, then the number of sharks at the aquarium is 2 sharks / stingray * 28 stingrays = 56 sharks. The number of fish in the tank is 56 sharks + 28 stingrays = 84 fish.
The answer: 84
Reverse engineering the question: At the aquarium, there are twice as many sharks as stingrays. If there are 28 stingrays, how many fish are there?


Tony got 3 degrees which each took 4 years, for 3 * 4 = 12 years spent. He then got his graduate degree, which was another 2 years added to the previous total, for 12 + 2 = 14 years in total.
The answer: 14
Reverse engineering the question:
Tony decided he wanted to be an astronaut. He went to college for 4 years to get a degree in science. He then went on to get 2 more degrees in other fields for the same period of time. He also got a graduate degree in physics, which took another 2 years. How many years in total did Tony go to school to be an astronaut?