Math, asked by rajendra8018mohanty, 10 hours ago

The average age of 10 students and their teacher is 20 years. If the teacher's age is excluded, their average age reduces by 2 years. What is the teacher's age ? aAAAAA OaaaOl

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Answered by aaradhyaphatale

Now it is given that if the age of the teacher is excluded the average comes down to 18, so we have, So the sum of 10 students age is 180, now, Hence, the age of the teacher is 40.

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The average age of 10 students and their teacher is 20 years. If the teacher's age is excluded, their average age reduces by 2 years. What is the teacher's age ? aAAAAA OaaaOl​

Answers

The average age of 10 students and their teacher is 20 years. If the teacher's age is excluded, their average age reduces by 2 years. What is the teacher's age ? aAAAAA OaaaOl