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In a survey, 60% of people like tea, 50% like coffee, and 20% like both. What percentage of people like either tea or coffee?

Practice Questions

1 question
Q1
In a survey, 60% of people like tea, 50% like coffee, and 20% like both. What percentage of people like either tea or coffee?
  1. 90%
  2. 80%
  3. 70%
  4. 50%

Questions & Step-by-step Solutions

1 item
Q
Q: In a survey, 60% of people like tea, 50% like coffee, and 20% like both. What percentage of people like either tea or coffee?
Solution: Using the principle of inclusion-exclusion, the percentage of people who like either tea or coffee is: 60% + 50% - 20% = 90%.
Steps: 0

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