Reasoning and answer: From the children, there are a total of 11 children * 4 items of clothing each = 44 items of clothing on the clotheslines. From the adults, there are a total of 20 adults * 3 items of clothing each = 60 items of clothing on the clotheslines. So there are a total of 44 + 60 = 104 items of clothing on the clotheslines. This means that there are 104 items of clothing / 2 items of clothing per clothesline = 52 clotheslines. There are 2 clotheslines per house so there must be 52 clotheslines / 2 = 26 houses on the street.
The answer: 26
What was the question?
Question: A row of houses all share a community space where they put up their clotheslines. There are 2 clotheslines for every house on the street. On the street, there are a total of 11 children and 20 adults. Each child currently has 4 items of clothing on the clotheslines and each adult currently has 3 items of clothing on the clotheslines. If each clothesline can hold 2 items of clothing and all of the clotheslines are full, how many houses are on the street?


The cow initially weighs 400 * 1.5 = 600 pounds. So it gained 600 - 400 = 200 pounds. So its value increased by 200 * $3 = $600.
The answer: 600
Reverse engineering the question: John's cow weighs 400 pounds. It increased its weight to 1.5 times its starting weight. He is able to sell the cow for $3 per pound. How much more is it worth after gaining the weight?


Reasoning and answer: Mike received 3 oranges. Matt received twice as many apples as Mike received oranges, so he got 3 * 2 = 6 apples. Mark received 6 + 3 = 9 bananas. So in total, all children received 3 + 6 + 9 = 18 fruits.
The answer: 18
What was the question?
Question: Annie is a mother of 3 children: Mark, Matt, and Mike. She decided to give them some fruits. Mike received 3 oranges. Matt got twice as many apples, and Mark got as many bananas as Mike and Matt received fruits altogether. How many fruits do the three children have in total?


In one hour the jet could travel 580 miles / 2 hours = 290 miles. In 10 hours the jet could fly 290 miles * 10 = 2900 miles.
The answer: 2900
Reverse engineering the question: A jet travels 580 miles in 2 hours. At this rate, how far could the jet fly in 10 hours?


Reasoning and answer: The books will cost $40 because 8 x 5 = 40. He needs to save up $27 because 40 - 13 = 27.
The answer: 27
What was the question?
Question: Tommy wants to earn enough money to buy 8 new books. Each book costs $5. If Tommy already has $13, how much does he need to save up?


Reasoning and answer: Albert has 4 * 9 books belonging to Stu = 36 books. So the pair have a combined total of 36 books belonging to Albert + 9 books belonging to Stu = 45 books.
The answer: 45
What was the question?
Question:
If Stu has 9 books and Albert has 4 times as many books as Stu, how many books do Stu and Albert have in total?