At 5 a.m., Dylan and Ethan left Park V and drove towards Park W at average speeds of 79 km/h and 55 km/h respectively. Upon reaching Park W, Dylan rested for 2 hours. He then headed back for Park V at an average speed of 79 km/h along the same route. Dylan and Ethan met each other on their way at 12 noon.
- How far had Dylan covered when he met Ethan on the way?
- How far apart were the two parks?
(a)
Time taken by Ethan = 7 h
Time taken by Dylan = 7 - 2 = 5 h
Distance covered by Dylan when he met Ethan
= 5 x 79
= 395 km
(b)
Distance travelled by Ethan
= 7 x 55
= 385 km
Distance of the two parks
= (395 + 385) ÷ 2
= 780 ÷ 2
= 390 km
Answer(s): (a) 395 km; (b) 390 km
