To fill 12 vacancies there are 25 candidates of which 5 are from scheduled castes. If 3 of the vacancies are reserved for scheduled caste candidates while the rest are open to all, the number of ways in which the selection can be made is `""^(5)C_(3) xx ""^(20)C_(9)`.

To fill 12 vacancies there are 25 candidates of which 5 are from scheduled castes. If 3 of the vacanies are reserved for scheduled caste candidates while the rest are open to all, the number of ways in which the selection can be made is ""^5C_3 xx ""^22C_9.

To fill 12 vacancies there are 25 candidates of which 5 are from scheduled caste.If three of the vacancies are reserved for scheduled caste candidates while the rest are open to all; the number of ways in which the selection can be made is a.^(5)C_(3)xx^(22)C_(9) b.^(22)C_(9)-^(5)C_(3) c.22C_(3)+^(5)C_(3) d.none of these

To fill 12 vacancies, there are 25 candidates of which 5 are from scheduled caste. If three of the vacancies are reserved for scheduled caste candidates while the rest are open to all; the number of ways in which the selection can be made is a. ""^5C_3 xx ""^(22)C_9 b. ""^22C_9-""^5C_3 c. ""^22C_3+ ""^5C_3 d. none of these

To fill 12 vacancies, there are 25 candidates of which 5 are from scheduled caste. If three of the vacancies are reserved for scheduled caste candidates while the rest are open to all; the number of ways in which the selection can be made is a. ^5C_3xx^(22)C_9 b. ^22C_9-^5C_3 c. ^22C_3+^5C_3 d. none of these

To fill 12 vacancies there are 25 candidates of which 5 are from scheduled caste. If three of the vacancies are reserved for scheduled caste candidates while the rest are open to all; the number of ways in which the selection can be made is a. 5C_3xx^(22)C_9 b. 22 C_9-^5C_3 c. 22 C_3+^5C_3 d. none of these

To fill up 12 vacancies, there are 25 candidates of which 5 are from SC. If 3 of these vacancies are reserved for SC candidates while the remaining are open to all then the number of ways in which the selection can be made is

From the string abacabababcdced, if 5 letters should be selected , then the number of ways in which this selection can be done is

From the string abacabababcdced, if 5 letters should be selected , then the number of ways in which this selection can be done is