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Average Speed

A car coverS ...

Question

A car coverS th of a distance at a speed of1.th of the distance at a speed of80 km/h and60 km/h. Average speed of car for complete journey is(1) 65 km/h(2) 70.5 km/h(4) 77.5 km/h(3) 66.67 km/h2/5 31L

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