In how many ways a committee of a 6 members can be formed out of 10 members but always consisting of a…

In how many ways a committee of a 6 members can be formed out of 10 members but always consisting of a specified member ?
  1. \(\frac{1}{2}{ }^9 P_5\)
  2. \({ }^9 P_5\)
  3. \({ }^9 \mathrm{C}_5\)
  4. \(\frac{1}{2}{ }^9 C_5\)

Solution

As the committee consists a specified member out of 6 members, then we need to select only 5 members out of 9 remaining members and it can be done is \({ }^9 C_5\) ways. Hence, option (c) is correct.

Asked in: AP EAMCET 2020 (21 Sep Shift 2)

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