1.

A n b are the two points 150km apart on a road two cars starts with different speed from a n b at same time if they are move in the same direction then they meet in 15 hrs but if they move in opposite direction they will meet in one hrs find it's initial n fibal speed

Answer»

ed of car A be X km/hr.While travelling in opposite direction.It will cover a distance of 15X km in 15 hours.Car B will cover a distance of 150+15x km in 15 hours.Speed of car B = (150+15x)/15=x+10 km/hr.While TRAVELING in the same direction .In 1 hour carA will cover distance xkmCarB will cover distance x+10km.So,x + x+ 10 =2502x=240x=120km/hrSpeed of car A= 120km/hrSpeed of car B=130 km/hr



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