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JCECE Engineering JCECE Engineering Solved Paper-2011

  • question_answer
    In a college examination, a candidate is required to answer \[6\] out of \[10\] questions which are divided into sections each containing \[5\] questions. Further the candidate is not permitted to attempt more than \[4\] questions from either of the section. The number of ways in which he can make up a choice of \[6\] questions, is

    A) \[200\]                                 

    B) \[150\]

    C) \[100\]                                 

    D) \[50\]

    Correct Answer: A

    Solution :

    The required number of ways                 \[{{=}^{5}}{{C}_{4}}{{\cdot }^{5}}{{C}_{2}}{{+}^{5}}{{C}_{3}}{{\cdot }^{5}}{{C}_{3}}{{+}^{5}}{{C}_{2}}{{\cdot }^{5}}{{C}_{2}}\] \[=50+100+50=200\]


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