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The average age of 51 students of a class is 21 years. If the age of the teacher is also included, the average age of the whole group becomes 22 years. The age (in years) of the teacher is:
74
73
70
71
73
Practice and solve "The average age of 51 students of a class is 21 years. If the age of the teacher is also included, t..." for Mathematics - Previous Year Paper 2024. The correct answer is Option B: 73. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "The average age of 51 students of a class is 21 years. If the age of the teacher is also included, t..." for Mathematics - Previous Year Paper 2024. The correct answer is Option B: 73. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.