Of the 850 participants in a professional meeting, 350 are females and 1/2 of the female and 1/4 of the male participants are less than fifty years old. If one of the participants will be randomly selected to receive a book prize, what is the probability that the person selected will be more than fifty years old?

• Given is, 850 Participants => 350-females & 500-males
  Out of 350 females => 175 are 50 years
  Out of 500 males => 125 are 50years
  Hence, 550 are >50years. Hence the probability is 550/850 = 11/17.
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