Two cars leave town going in opposite directions. One car is traveling 60 miles per hour (mph), and the other car is traveling 50 mph. How long will it take before the cars are 220 miles apart?

Question

stormfire1 · Answer

Well, without doing any algebra you can conclude that after 2 hours, car 1 has gone 120 miles and car 2 has gone 100 miles...which totals 220 miles.

stormfire1 · Answer

Just in case, here's how to do it algebraically:$$(x * 50)+(x * 60) = 220$$ and just solve for x.

anonymous · Answer

2 hours

 3 hours

 4 hours

 5 hours

stormfire1 · Answer

Read my first post, the answer is there.

anonymous · Answer

Since the cars are moving in opposite direction then their resultant speed = (60+50) mph = 110 mph

Time = Distance/ speed

Distance = 220 miles
speed = 110 mph
so time=distance/speed
= 220/110 = 2 hours.