Question 338456
two runners start running laps at the same time, from the same starting position.
 George runs a lap in 50 seconds, Sun runs a lap in 30 seconds.
 when will the runners next be side by side?
:
Find the least common multiple of 50 and 30
Factor 50: 2*5*5
Factor 30: 2*3*5
LCM = 2*3*5*5 = 150 seconds. (G completes 3 laps while S completes 5 laps)