Given that,
Speed of first bicycle = 9 mph
Speed of second bicycle = 5 mph
Suppose the length of the circle 24 miles.
We need to find the relative velocity
Using formula of relative velocity
Put the value into the formula
We need to calculate the time
Using formula of time
We need to calculate the distance of the points where the two bicycles meet
Using formula of distance
For first bicycles,
For second bicycles,
Hence, The points where the two bicycles meet after every 6hr at 30 miles and 54 miles.