A bus covers first 50 km of a journey in 80 minutes. It covers next 30 – InterviewSolution

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1.	A bus covers first 50 km of a journey in 80 minutes. It covers next 30 km with a speed of 30m/s.What will be the average speed of journey.
Answer» first JOURNEY :S=dis/ts=50/4/3hr (CONVERT 80 min to HR)speed=50 X 3/4 = 75/2Second journey:108km/hr = 30/t30/108=tt=5/18hrTotal journeydistance= 50+30=80kmtime = 4/3 + 5/18 = 29/18hrAvgspeed=80km/29/18=1440/29=49.65km/hr

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