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17. Two cars leave Delhi at the same time, travelling in opposite directions. If the average speed of one caris 5 km/hr more than that of the other and they are 425 km apart at the end of 5 hrs, what is the averagespeed of each?

Answer»

Car I x kmphCar II x+5kmph..They are moving away from each other

So add up their speed.

combined speed = x+x+5(2x+5)Time = 5hoursDistance = 425kmDistance = speed * time(2x+5)*5=42510x +25=42510x =425+-2510x =400/10x=40kmphCar ICar II 40+5=45kmph



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