Hunter and Amanda drove separately to a park that is 27 kilometers away. Hunter left at 8:50 a.m. and arrived at 10:38 a.m. Amanda left at 11:19 a.m. and arrived at 12:49 p.m. Amanda drove her car at a rate that averaged 3 kph faster than Hunter. What were Hunter's and Amanda's speeds?
We can see that Amanda took 1 and 1/2 hrs to drive 27 kilometers so her speed in kph is 27/(3/2) = 27*2/3=18 kph. Since Hunter's speed is 3 kph less, Hunter's speed is 15 kph.
So Amanda's speed is 18 kph and Hunter's speed is 15 kph.