The $40 is divided into 1 part for Justin + 3 parts for Joshua = 4 parts. So each part is equal to $40 / 4 = $10. Therefore, Joshua's share is $10 x 3 = $30.
The answer: 30
Reverse engineering the question: Joshua and Justin shared $40. Joshua’s share was thrice as much as Justin’s. How much is Joshua's share?


Reasoning and answer: Crossing the lake two times (back and forth) would take 4 * 2 = 8 hours. So Tom would need to pay an assistant 8 * 10 = $80.
The answer: 80
What was the question?
Question: Tom decided to go on a trip. During this trip, he needs to cross a lake, which in one direction takes 4 hours. During this time, Tom needs an assistant to help him with the crossing. Hiring an assistant costs $10 per hour. How much would Tom have to pay for help with crossing the lake back and forth?


He needs to save up $400 because 4 x 100 = 400. He has 8 months to earn this money because 12 - 4 = 8. He needs to earn $50 a month because 400 / 8 = 50. He needs to do 5 tasks a month because 50 / 10 = 5.
The answer: 5
Reverse engineering the question: Gerald spends $100 a month on baseball supplies. His season is 4 months long. He wants to use the months he's not playing baseball to save up by raking, shoveling, and mowing lawns. He charges $10 for each. How many chores does he need to average a month to save up for his supplies?


Reasoning and answer: There were 200 - 40 = 160 runners last year. Therefore, there will be 2 x 160 = 320 runners this year.
The answer: 320
What was the question?
Question: Last year, Peter organized a Fun Run for his community project and 200 people signed up. Forty people did not show up to run. This year, there will be twice as many runners as last year. How many people will run this year?


Will caught 16 + 10 = 26 fishes. Henry caught 3 trout for each catfish Will caught so since Will caught 16 catfish, Henry caught 16 * 3 = 48 trout. Half of 48 trout is (1 / 2) * 48 = 24. Henry returned 24 trout leaving him with 48 - 24 = 24 trout. They now have a total of 26 + 24 = 50 fishes.
The answer: 50
Reverse engineering the question: Will and Henry go fishing in a river. Will catches 16 catfish and 10 eels. Henry challenges himself to catch 3 trout for every catfish Will catches. Due to environmental concerns, Henry decides to return half his catch after meeting his own challenge. How many fishes do they have altogether now?


The 2 VIP tickets amount to $100 x 2 = $200. The 3 regular tickets amount to $50 x 3 = $150. Thus, the total cost of the tickets is $200 + $150 = $350. Therefore, Mrs. Wilsborough is left with $500 - $350 = $150 of her savings.
The answer: 150
Reverse engineering the question:
Mrs. Wilsborough saved $500 to buy concert tickets for her family. She bought 2 VIP tickets at $100 each and 3 regular tickets at $50 each. How much of her savings does Mrs. Wilsborough have after she buys the tickets?