Car Problem
Level
pending
Car A began a journey from a point at 9 am, traveling at 30 mph. At 10 am car B started traveling from the same point at 40 mph in the same direction as car A. At what time will car B pass car A? Use a 24 hr clock, and write the hour.
The answer is 13.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Assume that the second car will pass the first after x hours
The distance covered by car A = ( x + 1 ) × 3 0
The distance covered by car B ( 4 0 × x )
then ( x + 1 ) × 3 0 = ( 4 0 × x )
Solve for x ---> x = 3
Both cars will meet @ time = (9 +3+1) = 13:00