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      Question

      The average age of 33 children and their teacher's age

      are 25 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
      A 45 years Correct Answer Incorrect Answer
      B 42 years Correct Answer Incorrect Answer
      C 58 years Correct Answer Incorrect Answer
      D 52 years Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Sum of the age of total children and teacher = 34 × 25 = 850 Sum of the age of children after excluding = 33 × 24 = 792 Teacher’s age = 850 – 792 = 58 years

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