Explanation and analysis: This topic is a brain teaser. In the title, "A catty of cabbage is fifty cents, a catty of radish is forty cents, and a catty of ribs is how much?" There are two meanings. Let's answer the price of a catty of ribs according to the prices of the first two things. Another kind of "how much" is to ask the unit of weight, because a catty is equal to twelve, and one or two is equal to ten yuan, so a catty of ribs is equal to 100 yuan.

Extended data:

Brainstorming covers a wide range, including classics, puzzles, jokes, satire, mathematics, English, all mankind, cold jokes and so on. Other types of brain teasers include:

1, melons, cucumbers, watermelons and pumpkins can all be eaten, but what melons can't be eaten? Answer and explanation: fool, fool is a derogatory term, not an edible melon and fruit.

2. There are six steamed buns in the basin, each for six children 1, and there is 1 in the basin. Why? Answer and explanation: The last child took the basin.