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Math Help - Beginner permutations questions clarification

  1. #1
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    Beginner permutations questions clarification

    Jeff has a choice of three soups, four types of sandwiches, and two desserts. In how many ways can Jeff choose his lunch if he has soup, a sandwich, and dessert?

    I completely forgot how to do questions like that. Is it simply 3P1 + 4P1 + 2P1 = 24? I feel like I'm missing something.
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  2. #2
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    Re: Beginner permutations questions clarification

    Quote Originally Posted by IanCarney View Post
    Jeff has a choice of three soups, four types of sandwiches, and two desserts. In how many ways can Jeff choose his lunch if he has soup, a sandwich, and dessert?
    Note that 3\cdot 4\cdot 2=24. Simple multiplication.

    Also note that _3P_1 + _4P_1 + _2P_1 = 9\ne 24?
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    Re: Beginner permutations questions clarification

    Quote Originally Posted by Plato View Post
    Note that 3\cdot 4\cdot 2=24. Simple multiplication.

    Also note that _3P_1 + _4P_1 + _2P_1 = 9\ne 24?
    Right I meant multiplying them. And thanks! Guess I was over complicating things.
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