Question
The average age of 26 smdents in a class is 15 years. If
teacher's age is included in it, then the average will increase by one. What is the teacher's age (in years)?Solution
ATQ,
Total age of 26 students = 15×26=390 Total age with teacher = 16×27=432 Teacher's age = 432−390=42 Final Answer: The teacher is 42 years old.Â
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64Â Â Â 48Â Â Â 36Â Â Â 22Â Â Â Â 16Â Â Â Â 8
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1,2, 5, ‘?’, 41, 122, 365
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find the value of (10x + x -5)?
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