Mathematics, 05.11.2020 16:20 Bg88860709
A leading manufacturer of kitchen appliances advertised its products in two magazines: Good Housekeeping and the Ladies Home Journal. A survey of 500 customers revealed that 130 learned of its products from Good Housekeeping, 120 learned of its products from the Ladies Home Journal, and 90 learned of its products from both magazines. What is the probability that a person selected at random from this group saw the manufacturer's advertisement in both magazines?
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