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To fill 12 vacancies there are 25 candid...

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

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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 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

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