A car travels 30 km at an uniform speed of 40 km per hour and the next 30 km at a uniform speed of 20 kilometre per hour find its average speed
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Fomula: Average Speed = Total Distance / Total Time Speed = Distance / Time Time = Distance / Speed Time1 = 30 / 40 = 0.75 hours Time2 = 30 / 20 = 1.5 hours Average Speed = (30 + 30) / ( 1.5+0.75) Average Speed = 60 / 2.25 Average Speed = 60 / 2.25 Average Speed = 26.667 km/hr
Ans 2 and 3 in image
Fomula: Average Speed = Total Distance / Total Time Speed = Distance / Time Time = Distance / Speed Time1 = 30 / 40 = 0.75 hours Time2 = 30 / 20 = 1.5 hours Average Speed = (30 + 30) / ( 1.5+0.75) Average Speed = 60 / 2.25 Average Speed = 60 / 2.25 Average Speed = 26.667 km/hr
Ans 2 and 3 in image
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