At noon, the school canteen serves four kinds of meat dishes, three kinds of vegetarian dishes and two kinds of soup. Xiaojun will have a lunch with meat, vegetarian dishes and soup. How many different kinds does he have? (⊙ O ⊙ O ⊙o⊙)… ...... High school permutation and combination math problem! ! I can tell you responsibly that Xiaojun has 24 different collocation schemes! !

Ahem … I'm going to speak ~! ! Na ~ suppose there are four kinds of meat dishes, three kinds of vegetarian dishes and one or two kinds of soup: then ① and A can be matched with A, B, C and D; ①. B can also be matched with A, B, C and D; (1) and there are four in the same way as C; So there are 12 kinds ~! (2) and (a) can be matched with A, B, C and D; (2) There are four reasons for being the same as B; ② It is the same as C, so there are 12 kinds, so * * * is 24 kinds! ! ! ohyeah~！ Have I made myself clear? O(∩_∩)O~~

Hope to solve your problem, hope to adopt ~!