New Enroll in RBI Grade B New Batch - Starts on May 21

    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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