Hampton Turnbull
05/13/2023 · Junior High School
5 Dos 30 participantes de um circuito turístico, oito só falam português, doze só falam francês e dez falam as duas línguas. De quantas maneiras se podem escolher dois participantes que falem a mesma língua?
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O número total de maneiras de escolher dois participantes que falem a mesma língua é 139.
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