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    Question

    There are five mobiles to be distributed among seven

    friends. If no one get more than one mobile, then in how many different way can this be done?
    A 3680 Correct Answer Incorrect Answer
    B 2720 Correct Answer Incorrect Answer
    C 2640 Correct Answer Incorrect Answer
    D 2520 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Required no. of ways = 7 P5 = 7!/(7 - 5)! = 7!/2! = 2520

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