How many people learned of the sale from newspapers or radio

Reference no: EM13186284

A merchant surveyed 380 people to determine the way they learned about an upcoming sale. The survey showed that 200 learned about the sale from the radio, 190 from television, 180 from the newspaper, 90 from radio and television, 100 from radio and newspapers, 60 from television and newspapers, and 40 from all three sources. How many people learned of the sale from newspapers or radio, but not both?

Reference no: EM13186284

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