At 6 a.m., Dylan and Sam left Park E and drove towards Park F at average speeds of 78 km/h and 62 km/h respectively. Upon reaching Park F, Dylan rested for 3 hours. He then headed back for Park E at an average speed of 78 km/h along the same route. Dylan and Sam met each other on their way at 2 p.m.
- How far had Dylan covered when he met Sam on the way?
- How far apart were the two parks?
(a)
Time taken by Sam = 8 h
Time taken by Dylan = 8 - 3 = 5 h
Distance covered by Dylan when he met Sam
= 5 x 78
= 390 km
(b)
Distance travelled by Sam
= 8 x 62
= 496 km
Distance of the two parks
= (390 + 496) ÷ 2
= 886 ÷ 2
= 443 km
Answer(s): (a) 390 km; (b) 443 km