At 6 a.m., Zeph and Will left Park R and drove towards Park S at average speeds of 77 km/h and 63 km/h respectively. Upon reaching Park S, Zeph rested for 2 hours. He then headed back for Park R at an average speed of 77 km/h along the same route. Zeph and Will met each other on their way at 12 noon.
- How far had Zeph covered when he met Will on the way?
- How far apart were the two parks?
(a)
Time taken by Will = 6 h
Time taken by Zeph = 6 - 2 = 4 h
Distance covered by Zeph when he met Will
= 4 x 77
= 308 km
(b)
Distance travelled by Will
= 6 x 63
= 378 km
Distance of the two parks
= (308 + 378) ÷ 2
= 686 ÷ 2
= 343 km
Answer(s): (a) 308 km; (b) 343 km