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There are 30 students in a class. Average age of first 10 students is 12.5 years and average age of other 20 students is 13.1 years. Find the average age of whole class.a)13 yearsb)12 yearsc)12.9 yearsd)12.7 yearsCorrect answer is option 'C'. 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 There are 30 students in a class. Average age of first 10 students is 12.5 years and average age of other 20 students is 13.1 years. Find the average age of whole class.a)13 yearsb)12 yearsc)12.9 yearsd)12.7 yearsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are 30 students in a class. Average age of first 10 students is 12.5 years and average age of other 20 students is 13.1 years. Find the average age of whole class.a)13 yearsb)12 yearsc)12.9 yearsd)12.7 yearsCorrect answer is option 'C'. Can you explain this answer?.

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