A person travels 600 km by truck at 80 km/h , 800 km by aeroplane at 400 km/h and 100 km by motorcycle at 50 km/h . What is the average speed for the - Quantitative Aptitude MCQ UP Police Constable 2026 | ExamTest.live

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A person travels 600 km by truck at 80 km/h, 800 km by aeroplane at 400 km/h and 100 km by motorcycle at 50 km/h . What is the average speed for the entire distance?

Solution & Step-by-step Explanation

The formula for average speed is: Average Speed = \frac{Total Distance}{Total Time} Total Distance = 600 + 800 + 100 = 1500 km . Total Time taken: * Time taken by truck = \frac{600}{80} = 7.5 hr * Time taken by aeroplane = \frac{800}{400} = 2 hr * Time taken by motorcycle = \frac{100}{50} = 2 hr Total Time = 7.5 + 2 + 2 = 11.5 hr = \frac{23}{2} hr Now, compute average speed: Average Speed = \frac{1500}{\frac{23}{2}} = \frac{3000}{23} = 130 \frac{10}{23} km/hr

Try it yourself before checking the explanation above.

A person travels 600 km by truck at 80 km/h, 800 km by aeroplane at 400 km/h and 100 km by motorcycle at 50 km/h . What is the average speed for the entire distance?

60 \frac{1}{13} km/hr

65 \frac{5}{23} km/hr

130 \frac{10}{23} km/hr

62 \frac{2}{23} km/hr

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