Ben has 4 x 10 = 40 basketball cards. His mother gave him 5 x 8 = 40 baseball cards. Thus, Ben has 40 + 40 = 80 cards in all. Therefore, Ben has 80 - 58 = 22 cards left.
The answer: 22
Reverse engineering the question: Ben has four boxes with ten basketball cards in each box. His mother gave him five boxes with eight baseball cards. If he gives 58 cards to his classmates, how many cards does he has left?


Reasoning and answer: The annual budget for policing is 32 / 2 = $16 million. The combined budget for education and policing is 16 + 12 = $28 million. There is 32 - 28 = $4 million to manage public spaces.
The answer: 4
What was the question?
Question: The town’s annual budget totals $32 million. If half of the budget goes towards policing and $12 million goes towards education. How much money is left for managing public spaces?


If Monroe and her husband ate 80 granola bars, then the number of granola bars the children shared is 200 - 80 = 120. Each child received 20 bars, and there were 120 granola bars, meaning there were 120 / 20 = 6 children in the family.
The answer: 6
Reverse engineering the question: Monroe made 200 granola bars for her family. She and her husband ate 80, and the rest was divided equally among her children. If each child received 20 granola bars, how many children are in the family?


Reasoning and answer: He works 8 hours a day for 10 days means he works 8 * 10 = 80 hours. It takes him 5 hours to build one rocking chair so over 80 hours he builds 80 / 5 = 16 rocking chairs.
The answer: 16
What was the question?
Question: Ben works 8-hour shifts in a furniture shop. It takes him 5 hours to build 1 rocking chair. How many chairs can he build in 10 days?


The two t - shirts amount to $8 x 2 = $16. The two bags amount to $10 x 2 = $20. So Timothy spent $16 + $20 = $36 for the shirts and bags. He still has $50 - $36 = $14 left to spend for the key chains. With the money, he can buy $14 / $2 = 7 sets of key chains. Therefore, he can buy 7 x 3 = 21 pieces of key chains.
The answer: 21
Reverse engineering the question: Timothy has $50 to spend at a souvenir shop. He sees some t-shirts that cost $8 each, key chains that sell 3 pieces for $2, and bags that cost $10 each. Timothy buys 2 t-shirts and 2 bags. How many pieces of key chains can he buy with the amount of money he has left?


Jesse runs 2 miles in the first three days because 3 x (2 / 3) = 2. Jesse has 18 miles left to run because 30 - 10 - 2 = 18. Jesse has to run an average of 6 miles a day because 18 / 3 = 6. Mia runs 12 miles over the first four days because 4 x 3 = 12. She has 18 miles left to run because 30 - 12 = 18. She has to run six miles a day because 18 / 3 = 6. The total they both have to run is 12 miles a day. The average they have to run per day on average is 6 miles because 12 / 2 = 6.
The answer: 6
Reverse engineering the question:
Jesse and Mia are competing in a week long race. They have one week to run 30 miles. On the first three days Jesse averages (2/3) of a mile. On day four she runs 10 miles. Mia averages 3 miles a day over the first 4 days. What is the average of their average that they have to run over the final three days?