To fill 3 vacancies there are 25 candidates of which five are from scheduled caste. If all 3 of the vacancies are reserved for scheduled caste, then the number of ways in which the selection can be made __________.
We need to fill 3 vacancies and all the vacancies need to fill from scheduled caste..
Since 3 vacancies filled from 5 candidates
It can be done in 5C3 ways