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The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .?
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The average age of 5 teachers is 28 years .If one teacher is excluded ...
Explanation:
- Let the sum of ages of 5 teachers be S and the age of the excluded teacher be X.
- The average age of 5 teachers is 28 years, so the total age of 5 teachers is 5 * 28 = 140 years (S = 140).
- When one teacher is excluded, the average age decreases by 2 years, so the new average age becomes 26 years.
- The total age of 4 teachers (excluding the one) is 4 * 26 = 104 years.
- The total age of 5 teachers excluding the age of the excluded teacher X is S - X.
- According to the given information, S - X = 104.
- But we know that S = 140, so 140 - X = 104.
- Solving for X, we get X = 140 - 104 = 36 years.
Therefore, the age of the excluded teacher is 36 years.
- Let the sum of ages of 5 teachers be S and the age of the excluded teacher be X.
- The average age of 5 teachers is 28 years, so the total age of 5 teachers is 5 * 28 = 140 years (S = 140).
- When one teacher is excluded, the average age decreases by 2 years, so the new average age becomes 26 years.
- The total age of 4 teachers (excluding the one) is 4 * 26 = 104 years.
- The total age of 5 teachers excluding the age of the excluded teacher X is S - X.
- According to the given information, S - X = 104.
- But we know that S = 140, so 140 - X = 104.
- Solving for X, we get X = 140 - 104 = 36 years.
Therefore, the age of the excluded teacher is 36 years.
Community Answer
The average age of 5 teachers is 28 years .If one teacher is excluded ...
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The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .?
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The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .?.
The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average age of 5 teachers is 28 years .If one teacher is excluded the mean gets reduced by 2 years . The age of the excluded teacher is .?.
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