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A public library carries 50 magazines, each focusing on either news or sports. Thirty of the magazines focus on news, and the remaining 20 focus on sports. Among the 30 news magazines, 20 include international news, and 10 include national, state, or local news only. Among the 20 sports magazines, 5 focus on international sports, and the remaining 15 focus on national, state, or local sports.

What proportion of the magazines include international news or international sports?

Answer :

Final answer:

To find the proportion of magazines with international news or sports, add the number of international news and sports magazines, divide by the total and multiply.

Explanation:

The proportion of magazines that include international news or international sports can be calculated by adding the number of magazines focusing on international news and international sports and dividing by the total number of magazines.

  1. International news magazines: 20
  2. International sports magazines: 5
  3. Total international magazines: 20 + 5 = 25
  4. Total magazines: 50
  5. Proportion of magazines with international news or sports: 25/50 = 0.5 or 50%

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