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Mathematics, 24.02.2021 17:20 jasminebailey829

Uma pesquisa encomendada sobre a preferência entre rádios numa determinada cidade obteve o seguinte resultado:
50 pessoas ouvem a rádio Riograndense.
27 pessoas escutam tanto a rádio Riograndense quanto a rádio Gauchesca.
100 pessoas ouvem apenas uma dessas rádios.
43 pessoas não escutam a rádio Gauchesca.
O número de pessoas entrevistadas foi:
a) 117
b) 127
c) 147
d) 177
e) 197​

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Answers: 2

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