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#31216 Bangla Language & Literature Statistics and Average Level 0

A school had 100 students aged 20years on an average. At the of the year 20 students aged 22 years on an average left and 25 students of 18 years on an average joined the school. What is the average age of the present students of the school?

  1. A 18
  2. B 20
  3. C 20.1
  4. D 22
Answer: C - 20.1

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