SOLUTION: two runners run around a circular track. the first runner completes a lap in 7 minutes. the second runner completes a lap in 13 minutes. If they both start at the same place and sa

Algebra.Com
Question 951519: two runners run around a circular track. the first runner completes a lap in 7 minutes. the second runner completes a lap in 13 minutes. If they both start at the same place and same time and go in the same direction, after how many minutes will they meet again at the starting place?
Found 3 solutions by josgarithmetic, lwsshak3, MathTherapy:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
Lowest Common Factor.

....

......
Answer by lwsshak3(11628)   (Show Source): You can put this solution on YOUR website!
two runners run around a circular track. the first runner completes a lap in 7 minutes. the second runner completes a lap in 13 minutes. If they both start at the same place and same time and go in the same direction, after how many minutes will they meet again at the starting place?
***
let x=number of minutes after which both runners meet at the stating place
x/7=13
or
x/13=7
x=7*13=91
after 91 minutes , faster runner completes 13 laps, and slower runner completes 7 laps, both runners meeting at the starting place.
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

two runners run around a circular track. the first runner completes a lap in 7 minutes. the second runner completes a lap in 13 minutes. If they both start at the same place and same time and go in the same direction, after how many minutes will they meet again at the starting place?
Number of minutes: LCM (Least Common Multiple) of 7 & 13 

RELATED QUESTIONS


Two runners run around a circular track. The first runner completes a lap in 7 minutes.... (answered by ankor@dixie-net.com)

Two runners begin running laps around a one mile track at the same time. The first runner  (answered by josmiceli)

I have a motion Q:
Two runners run around a circular track that is 480 meters long. The... (answered by lwsshak3)

Two runners jog around an oval track at constant rates, but in opposite directions.one... (answered by robertb)

A long distant runner does a first lap around a track in exactly 50 seconds. As she tires  (answered by ikleyn,MathTherapy)

A long distance runner does a first lap around a track in 
exactly 50 seconds. As she... (answered by Edwin McCravy)

A long distance runner does a first lap around a track in exactly 50 seconds. As she... (answered by jorel555)

A runner completes a 10km run in about 45mins. What was the runners speed in... (answered by Alan3354)

I ran two laps around a track in 99 seconds. how long did it take me to run each lap if I  (answered by KMST,lwsshak3)