Step-by-step reasoning process: 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.
[Q & A] The question is 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 answer is 26

Step-by-step reasoning process: Brian read two books with 15 chapters, so he read 2 * 15 = 30 chapters. He also read a book with 20 chapters, bringing the total for the first three to 30 + 20 = 50 chapters. He then read a book with half the chapters of his cumulative total so far, so it had 50 / 2 = 25 chapters. In total, he read 30 + 20 + 25 = 75 chapters.
[Q & A] The question is Brian likes to read books. He read one book that had 20 chapters, two books that had 15 chapters each, and one book that had half the chapters of the three previous books put together. How many chapters of books did Brian read?
The answer is 75

Step-by-step reasoning process: Fred received 250 + 120 = 370 stickers. Thus, Andrew shared 250 + 370 = 620 stickers. Therefore, Andrew kept 750 - 620 = 130 stickers.
[Q & A] The question is Andrew bought 750 stickers. He shared some of his stickers with his friends, Daniel and Fred. Daniel received 250 stickers, while Fred received 120 more stickers than Daniel.  He kept the remaining stickers. How many stickers did Andrew keep?
The answer is 130

Step-by-step reasoning process: Let N be the original price each friend was going to pay. 10N = 6(N + 8). 10N = 6N + 48. 4N = 48. N = 12. Then the present costs 10 * 12 = 120.
[Q & A]
The question is Ten friends decide to get an end-of-year gift for their teacher. They plan to split the cost of the gift equally. But four of the group drop out. The remaining friends split the cost equally among themselves. If each share is now $8 more, how much does the gift cost, in dollars?
The answer is 120