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โA car travels 120 km at an unknown speed x km/h and then returns at (x + 20) km/h. The average speed for the whole journey is 60 km/h. Find the value of x. (Round to one decimal place.)
54.5
51.6
50.2
52.4
51.6
Practice and solve "โA car travels 120 km at an unknown speed x km/h and then returns at (x + 20) km/h. The average spee..." for Mathematics - Previous Year Paper 2025. The correct answer is Option B: 51.6. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "โA car travels 120 km at an unknown speed x km/h and then returns at (x + 20) km/h. The average spee..." for Mathematics - Previous Year Paper 2025. The correct answer is Option B: 51.6. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.