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free Online Test Average Questions and Answers Quiz 6

Description: Free Online Test questions and answers on Average with explanation for various competitive exams,entrance test. Solved examples with detailed answer test 6


"Example is better than precept."
- (Proverb)
1 . The average age of 30 students of a class is 30 years. When the average age of class teacher is also included, the average age of the whole class increases by 1 year. The age of the class teacher is :
A.  31 years B.    60 years
C.  61 years D.    65 years
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