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The average age of 30 students is 9 years. If the age of their teacher is included, it becomes 10 years. What is the age of the teacher?a)30 yearb)35 yearc)25 yeard)40 yearCorrect answer is option 'D'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The average age of 30 students is 9 years. If the age of their teacher is included, it becomes 10 years. What is the age of the teacher?a)30 yearb)35 yearc)25 yeard)40 yearCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average age of 30 students is 9 years. If the age of their teacher is included, it becomes 10 years. What is the age of the teacher?a)30 yearb)35 yearc)25 yeard)40 yearCorrect answer is option 'D'. Can you explain this answer?.

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