First half of journey 50 km/hr and second half 70 km/hr . Find Average Speed
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Answer:
Explanation:
average speed =(50+70)/2
=60 km/hr
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1
Average speed =2.s1.s2/s1+S2=2×50.70/50+70 km/hr =7000/120 km/hr = 350/6 km/hr =58.3 km/hr
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