Required Mathematical Intelligence

Chapter 14

There are three horses on the racetrack, starting side by side from the starting line in the same direction.It is known that a stallion can run four laps in 10 minutes, a mare can run three laps in 10 minutes, and a colt can run two laps in 10 minutes. How long does it take for all three horses to return to the starting line at the same time?

[Answer: 10 minutes.At this time the stallion ran four laps, the mare three laps, and the colt two laps.Please think again, if the stallion can run six laps in 10 minutes, and the mare can run four laps, other things being equal, what is the answer? ]
(End of this chapter)