Engineering Board Exam Reviewer · Venn Diagrams · medium

Of 120 students, 70 speak English, 50 speak Filipino, and 20 speak neither. How many speak both languages?

  1. 30
  2. 20
  3. 50
  4. 10

Answer

B. 20

Solution

At least one language: 120-20=100. Both =70+50-100=20.

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