Team of four students is to be selected from a total of 12 students for a quiz competition. In how many ways it can be selected if three particular students should be included and one particular student doesn't want to be in the team.
8
Let particular four students are A, B, C and D.
A, B and C are selected D is not selected.
Select 1 from reaming 12 -4 = 8
Number of ways = 8C1 = 8