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The average marks of some students in a class is 75. When five students are included, the average becomes 78 and the marks of those five students are 80, 85, 89, 81 and 82. Find the total number of students.
6
9
8
10
9
Practice and solve "The average marks of some students in a class is 75. When five students are included, the average be..." for General Awareness - Previous Year Paper 2024. The correct answer is Option B: 9. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "The average marks of some students in a class is 75. When five students are included, the average be..." for General Awareness - Previous Year Paper 2024. The correct answer is Option B: 9. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.