A candidate is required to answer 6 out of 12 questions which are divided into two groups each containing 6 questions and he

Question

A candidate is required to answer 6 out
of 12 questions which are divided into
two groups each containing 6
questions and he is permitted to
attempt not more than four from any
group. In how many different ways can
he make up his choice?​

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Hadley 3 weeks 2021-08-20T11:42:12+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-08-20T11:43:39+00:00

    Answer:

    two sets have 6 questions each

    to satisfy the condition given he must attempt (2,4)or(3,3)or(4,2)

    selecting 2 out of 6 from 1st set & 4 out of 6 from 2nd set=6c2&6c4

    so total=6c2*6c4 ways if(2,4)

    similarly if (3,3) and (4,2) it has 6c3*6c3 ways and 6c4*6c2

    total 6c2*6c4+6c3*6c3+6c4*6c2=850

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