SOLUTION: Two bike riders ride around a circular path, the first rider completes one round in 10 minutes and the second rider completes it in 12 minutes. If they both start at the same plac

Question 534045: Two bike riders ride around a circular path, the first rider completes one round in 10 minutes and the second rider completes it in 12 minutes. If they both start at the same place and at the same time and go in the same direction, after how many minutes will they meet again at the starting place?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The 1st rider will be back at the start every
10 minutes, that is 10 min, 20 min, 30 min, etc.
The 2nd rider arrives at start 2 minutes later
each times around. The 5th time around, rider
#2 is behind 10 minutes.
#2 has gone 5 times around in 12*5 = 60 min
In 60 min, rider #1 has gone 6 times around,
and they meet at start
The answer is 60 min or 1 hr
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