Each bag makes a profit of 8 - 4 = $4. So he makes a total profit of 30 * 4 = $120.
The answer: 120
Reverse engineering the question: John buys bags of popcorn for $4 and sells them for $8. How much profit does he get by selling 30 bags?


Reasoning and answer: There are 3 bouquets. The total is the average times the number of bouquets, or 12 * 3 = 36. There are 9 + 14 = 23 accounted for. The third included 36 - 23 = 13 carnations.
The answer: 13
What was the question?
Question: Trevor buys three bouquets of carnations. The first included 9 carnations, and the second included 14 carnations. If the average number of carnations in the bouquets is 12, how many carnations were in the third bouquet?


On Sunday 2 x 2 = 4 papayas turned yellow. A total of 2 + 4 = 6 papayas turned yellow. There are 14 - 6 = 8 green papayas still left on the tree.
The answer: 8
Reverse engineering the question: There are 14 green papayas on the papaya tree. On Friday, two of the fruits turned yellow. On Sunday, twice as many fruits as on Friday turn yellow. How many green papayas are left on the tree?


Reasoning and answer: If he grows 9 plants with 3 seed packets, he grows 9 / 3 = 3 plants with 1 seed packet. Since 1 seed packet grows 3 plants, he'll need 1 more to make the plants 12.
The answer: 1
What was the question?
Question: Carter grew 9 plants with 3 seed packets. How many more seed packets does Carter need to have a total of 12 plants in his backyard?


The total weight of 100 bags of lemons is 100 x 8 = 800 kilograms. So, 900 - 800 = 100 kilograms can still be loaded into the truck.
The answer: 100
Reverse engineering the question: A farmer hires small trucks to transport his lemons to the markets. The load on a truck may not be more than 900 kilograms. One bag of lemons has a mass of 8 kilograms. If there are 100 bags of lemons, how many more kilograms can still be loaded into the truck?


Caleb’s dad caught 2 x 3 = 6 trouts. His dad caught 6 - 2 = 4 more trouts than Caleb.
The answer: 4
Reverse engineering the question:
Caleb and his dad went fishing at the lake. Caleb caught 2 trouts and his dad caught three times as much as Caleb. How many more trouts did his dad catch compared to Caleb?