A person covers 180 km, 240 km and 300 km by car, train and bus, respectively. Find the average spee….

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A person covers 180 km, 240 km and 300 km by car, train and bus, respectively. Find the average speed of the whole journey if the speeds of the car, train and bus are 60 km/hr, 80 km/hr and 50 km/hr, respectively.

Options :-

1. 63 km/hr
2. 60 km/hr
3. 62 km/hr
4. 62 km/hr

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