A team of 5 students is to be selected from 12 students. If two particular students are to be included in…
A team of 5 students is to be selected from 12 students. If two particular students are to be included in that team, then the number of ways that such team can be selected is
792
180
120
90
Solution
Since 2 particular students are always being selected Hence number of vacant place in 5 member team $=5-2=3$ Hence Now total available students $=12-2=10$
Therefore
Required No. of ways $=$ ways for selecting 3 students from available 10 students
$
={ }^{10} C_3=120
$