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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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