SOLUTION: car A travels at 20 mph and car B travels at 15 mph; car A is 200 m behind car B; how long does car A have to travel before it catches up with car B?
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Question 908533: car A travels at 20 mph and car B travels at 15 mph; car A is 200 m behind car B; how long does car A have to travel before it catches up with car B? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! Algebraic solution
t*(20-15)=200
t*5=200
t=200/5
t=40 hours
check
40(20-15)=200
40(5)=200
200=200
ok
200 15 20 0 0
Gaining speed 20-15= 5 mph
Headstart 200 =200 miles
Time to catch up =40 hours
