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The average age of 90 students in a class is 21 years. The average age of 30 of them is 23 years, and that of another 30 is 25 years. What is the average age of the remaining students?
15 years
14 years
17 years
18 years Question ID : 4410091972408 Option 1 ID : 4410097768776 Option 2 ID : 4410097768778 Option 3 ID : 4410097768777 Option 4 ID : 4410097768779 Status : Answered Chosen Option : A
15 years
Practice and solve "The average age of 90 students in a class is 21 years. The average age of 30 of them is 23 years, an..." for Mathematics - Previous Year Paper 2026. The correct answer is Option A: 15 years. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "The average age of 90 students in a class is 21 years. The average age of 30 of them is 23 years, an..." for Mathematics - Previous Year Paper 2026. The correct answer is Option A: 15 years. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.