A merchant surveyed 430 people to determine the way they learned about an upcoming sale. The survey showed that 200 leamed about the sale from the radio, 150 from television, 240 from the newspaper, 80 from radio and television, 110 from radio and newspapers, 80 from television and newspapers, and 40 from all three sources. How many people learned of the sale from newspapers or radio, but not both? people learned of the sale from newspapers or radio, but not both