Reasoning and answer: Cops that served a year pay $85 * 0.2 = $17 less. Cops that served a year pay $85 - $17 = $68. Cops that served at least 3 years get a $68 * 0.25 = $17 discount. Cops that served at least 3 years pay $68 - $17 = $51 for shoes.
The answer: 51
What was the question?
Question: Rookie police officers have to buy duty shoes at the full price of $85, but officers who have served at least a year get a 20% discount. Officers who have served at least three years get an additional 25% off the discounted price. How much does an officer who has served at least three years have to pay for shoes?


For the 2nd kilometer, the donation will be $10 * 2 = $20. For the 3rd kilometer, the donation will be $20 * 2 = $40. For the 4th kilometer, the donation will be $40 * 2 = $80. For the final kilometer, the donation will be $80 * 2 = $160. For the entire race the donation will be $10 + $20 + $40 + $80 + $160 = $310.
The answer: 310
Reverse engineering the question: Suzanne wants to raise money for charity by running a 5-kilometer race. Her parents have pledged to donate $10 for her first kilometer and double the donation for every successive kilometer. If Suzanne finishes the race, how much money will her parents donate?


Reasoning and answer: After losing some socks, Caroline has 40 - 4 = 36 pairs of socks. Caroline donates 36 * (2 / 3) = 24 pairs of socks to the thrift store. After donating some socks, Caroline has 36 - 24 = 12 pairs of socks remaining. After getting new socks, Caroline has 12 + 10 + 3 = 25 pairs of socks.
The answer: 25
What was the question?
Question: Caroline has 40 pairs of socks. She loses 4 pairs of socks at the laundromat. Of the remaining pairs of socks, she donates two-thirds to the thrift store. Then she purchases 10 new pairs of socks, and she receives 3 new pairs of socks as a gift from her dad. How many pairs of socks does Caroline have in total?


After the first mission, the number of cats remaining on the island was 1800 - 600 = 1200. If half of the remaining cats on the island were relocated to a rescue center inland, the number of cats taken by the wildlife service on the second mission is 1200 / 2 = 600 cats. The number of cats remaining on the island is 1200 - 600 = 600.
The answer: 600
Reverse engineering the question: After complaints from the residents of Tatoosh about the number of cats on the island, the wildlife service carried out a relocation mission that saw the number of cats on the island drastically reduced. On the first relocation mission, 600 cats were relocated from the island to a neighboring island. On the second mission, half of the remaining cats were relocated to a rescue center inland. If the number of cats originally on the island was 1800, how many cats remained on the island after the rescue mission?


Reasoning and answer: If there are 60 sharks in Pelican Bay, and this number is twice the number of Pelicans that usually live in Shark Bite Cove, then there were 60 / 2 = 30 Pelicans in Shark Bite Cove. If one - third of the Pelicans in Shark Bite Cove move to Pelican Bay,. then 30 / 3 = 10 Pelicans will have moved away. This would leave 30 - 10 = 20 Pelican remaining in Shark Bite Cove.
The answer: 20
What was the question?
Question: For many years, the number of sharks in Pelican Bay has been twice the number of Pelicans in Shark Bite Cove.  But today scientists say one-third of the Pelicans in Shark Bite Cove have moved to Pelican Bay. If there are still 60 sharks in Pelican Bay, how many Pelicans remain in Shark Bite Cove?


Reasoning and answer: He got 20 - 8 = 12 gifts on his 13th birthday. So he got 20 + 12 = 32 total gifts.
The answer: 32
What was the question?
Question:
John received 20 gifts on his 12th birthday. He received 8 fewer gifts on his 13th birthday. How many total gifts did he receive between those two birthdays?