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| Answer» TION:Average Speed = TOTAL distance/total time distance1 = 15kmspeed1 = 30km/htime1 = distance/speed = 15/30 = 1/2hdistance2 = 75kmspeed2 = 50km/htime2 = distance/speed = 75/50 = 3/2hAverage Speed = (D1 + d2)/(t1 + t2)avg speed = (15 + 75)/(1/2 +3/2)km/havg speed = 90/2 = 45km/h | |