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In a class of 50 students, 20 study Mathematics, 25 study Science, and 10 study both. How many students study at least one of the subjects?

Practice Questions

1 question
Q1
In a class of 50 students, 20 study Mathematics, 25 study Science, and 10 study both. How many students study at least one of the subjects?
  1. 35
  2. 40
  3. 45
  4. 50

Questions & Step-by-step Solutions

1 item
Q
Q: In a class of 50 students, 20 study Mathematics, 25 study Science, and 10 study both. How many students study at least one of the subjects?
Solution: Using inclusion-exclusion, the total is 20 + 25 - 10 = 35.
Steps: 0

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