A turtle and a snail are 360 meters apart and start moving towards each other at 3pm. The turtle is 11 times faster than the snail and the met at 3:40pm. What is the speed of each?
(11 s + s) t = 360
12 s t = 360
s = 30 / t
but t = 40 min
s = 30 /40 = 0.75 meters / minute
etc