math
posted by vincent .
Two cars begin driving toward each other from towns that are 150 miles apart. The first car is traveling 45 miles per hour, and the second is traveling 55 miles per hour. If each leaves at 2:15 pm, when will the two cars pass on the road?

Relative velocity=45+55=100mph
Time taken to cover the total distance=150/100=1.5 hr i.e. 1hr 30min
Meeting time is 2:15+1:30=3:45pm 
two cars starts from same point at same time and travel a long straight roads that form an angle of 45 degree with respect to each other. if one car runs 80 km/hr and the other at 55 km/hr, how fae apart are they after 2 hours?

Question: Two cars driving towards each other from towns that are 150 miles apart. The first car is traveling 45 miles per hour, and the second is traveling 55 miles per hour. If each leaves at 2:15, when will the two cars pass on the road?
Answer: Relative velocity=45+55=100mph
Time taken to cover the total distance=150/100=1.5 hr i.e. 1hr 30min
Meeting time is 2:15+1:30=3:45pm