Anthony lost 6 pets, so he has 16 - 6 = 10 pets left. Then 1 / 5 * 10 = 2 died from old age. So, Anthony now has 10 - 2 = 8 pets.
The answer: 8
Reverse engineering the question: Anthony has 16 pets. This morning he forgot to lock the door and he lost 6 pets. After that 1/5 of his pets died from old age. How many pets does he have left?


Reasoning and answer: First, we need to determine the overall number of portions. To do this, we begin by performing 20 * 2 = 40 portions after the first halving. Next, we take this portion number and double it again, performing 40 * 2 = 80 portions after the second halving. Lastly, we divide this portion number by the number of portions each person will be served, performing 80 / 8 = 10 people served.
The answer: 10
What was the question?
Question: Donna is catering for a party. She makes 20 sandwiches and then cuts them in half, before cutting them in half again. She then gives everyone 8 portions. How many people can she feed?


She gets 1000 / 25 = 40 sections. She gives away 40 / 4 = 10 sections. So she keeps 40 - 10 = 30 sections. She keeps 30 / 2 = 15 sections on hand.
The answer: 15
Reverse engineering the question: Jan buys 1000 feet of cable. She splits it up into 25-foot sections. She gives 1/4 of that to a friend. She then puts half of the rest in storage. How much does she keep on hand?


Reasoning and answer: Jethro has 60 / 3 = $20. Twice of what Jethro has is $20 x 2 = $40. Carmen has $40 - 7 = $33. The sum of all their money is $60 + $20 + $33 = $113.
The answer: 113
What was the question?
Question: Carmen needs $7 more to have twice the amount of money that Jethro has. Meanwhile, Patricia has $60, which is 3 times as much as Jethro. What is the sum of all their money?


The cost of the Lyft ride is $22 - $3 = $19. The original cost of the taxi ride is $19 - $4 = $15. Trevor tips the taxi driver $15 * 0.20 = $3. The total cost of the ride downtown is $15 + $3 = $18.
The answer: 18
Reverse engineering the question: Trevor needs to go downtown for a restaurant date. An Uber ride downtown costs $3 more than a Lyft ride. A Lyft ride costs $4 more than a taxi ride. The Uber ride costs $22. If Trevor takes a taxi downtown and tips the taxi driver 20% of the original cost of the ride, what is the total cost of the ride downtown?


They had to recover 3 + 2 = 5 animals. So it took 5 * 2 = 10 hours to recover everyone.
The answer: 10
Reverse engineering the question:
3 lions and 2 rhinos escape from the zoo. If it takes 2 hours to recover each animal how long did the zoo spend recovering animals?