a truck Travels some distance with a constant speed of 30 km per hour and return back with the constant speed of 40 km per hour calculate the average speed of the truck.
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Answered by
3
Answer:
Average speed= 30+40/2
= 70/2
= 35 km/hr
Answered by
3
Answer:
Average speed =S1+S2/S1/t1+S2/t2
=2s /(40+30)/(30×40)
=2s ÷70/120
=2s×120/70
=240/70=3.428km/ h
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