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Of the 50 researchers in a workgroup, ...

Of the 50 researchers in a workgroup, 40% will be assigned to Team A and the remaining 60% to Team B. however 70% of the researchers prefer Team A and 30% prefer team B. what is the least possible number of researchers who will not be assigned to the team they prefer? `15` b. `20` c. `30` d. `35`

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