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anonymous

  • one year ago

an elf, a dwarf, a hobbit, a wizard, and a man are sitting in a line. How many different ways can they sit if the elf and dwarf insist on sitting next to eachother?

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  1. anonymous
    • one year ago
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    is it 48 ways

  2. rational
    • one year ago
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    pack `elf` and `dwarf` in a bag, then you will have just four objects to arrange : bag, hobbit, wizard, man

  3. rational
    • one year ago
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    you can arrange \(4\) objects in \(4!\) ways further, the \(2\) items inside bag can be arranged in \(2!\) ways so the total number of sitting arrangements ways = \(4!*2! = 48\)

  4. anonymous
    • one year ago
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    thank you!

  5. rational
    • one year ago
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    np

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