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Rahul travels first 50 km at 10 kmph, next 40 km at 20 kmph and then next 60 km a 15 kmph.Find his average speed for the whole journey. |
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Answer» SPEED = DISTANCE /TIME 1) s1/t1= 50/10= 5 hours 2) s2/t2=40/20=2 hours 3) s3/t3=60/15=4 hours Average Speed= TotalDistance/Totaltimetaken s1+s2+s3/t1+t2+t3 50+40+60/5+2+4 = km/hr 150/11= 13.6363636364 approximately 13km/hr ANS= 13.6363636364 MEANS APPROX. = 13KM/HR HOPE THE ANSWER WILL HELP YOU |
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