Question 970985
Two cars are driven around a 10 kilometre track.
Both cars leave from the start line at the same time.

Car X travels at exactly 40km/h
Car Y travels at exactly 30km/h

How many minutes will it be before they pass the start line together?
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Car X takes 15 minutes per lap.
Car Y takes 20 per lap.
The LCM (Least Common Multiple) is 300 minutes.
--> 300 minutes.