A motorcyclist drivers form A to B with a uniform speed of 30 km/ h and returns back with a speed of 20 km/h.Find its average speed.
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Answer:
25km/hr
Explanation:
Speed for going = 30km/hr
Speed of coming back = 25km/hr
So, total speed = (30+20) km/hr
= 50 km/hr
So, average speed = (50/2) km/hr
= 25 km/hr
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20 km/h + 30 km/h =50km/h
50km/h /2=25km/h
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