Aptitude - 2

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Multiple Choice

There are 30 students in a class. The average age of the first 10 students is 13.5 years. The average age of the next 20 students is 14.1 years. What is the average age of the whole class?

  1. 13.0 years
  2. 13.5 years
  3. 13.7 years
  4. 13.9 years
  5. 13.8 years
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