Runner A speed 1km/hour
Runner B speed 2km/hour
They start of at the same point at the oval.In a lap that is 500m, how many times will they meet at the starting point after 10 hours.
I managed to get the LCM for runner A,B using the time taken to complete 1 lap
A=1/2 hrs, B=1/4 hours
=>LCM is 1/2 hrs
In 10 hrs would they have meet 10/(1/2)=20 times at the starting point?
I was told that it will be 19 times,but not sure why!thanks for your help
1 answer
Hmmm. Looks like 20 to me, too. There aren't any fractional laps to worry about.
1 answer