a car travels a distance of 2000 M if the first half distance is covered at 40 km per hour and the second half at the velocity v and if the average velocity is 48 km per hour then the value of V
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a=40km/hr
b=v km/hr
then
2ab/(a+b)= 48
2*40*v/(40+v)=48
80v/(40+v)=48
5v=230+3v
2v=120
v=60
therefore actual value of V is 60km/hr
b=v km/hr
then
2ab/(a+b)= 48
2*40*v/(40+v)=48
80v/(40+v)=48
5v=230+3v
2v=120
v=60
therefore actual value of V is 60km/hr
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I hope this will help you my dear
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