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evablogger [386]
3 years ago
14

A merchant surveyed 370 people to determine the way they learned about an upcoming sale. The survey showed that 170 learned abou

t the sale from the radio 140 from television 190 from the newspaper, 90 from radio and television, 120 from radio and newspapers, 80 from television and newspaper, and 70 from all three sources. how many people learned of the sale from newspapers or radio, but not both?
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0
240

Because 170+190= 360 .
360-120=240
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