At 5 a.m., Zane and Seth left Park E and drove towards Park F at average speeds of 78 km/h and 60 km/h respectively. Upon reaching Park F, Zane rested for 3 hours. He then headed back for Park E at an average speed of 78 km/h along the same route. Zane and Seth met each other on their way at 12 noon.
- How far had Zane covered when he met Seth on the way?
- How far apart were the two parks?
(a)
Time taken by Seth = 7 h
Time taken by Zane = 7 - 3 = 4 h
Distance covered by Zane when he met Seth
= 4 x 78
= 312 km
(b)
Distance travelled by Seth
= 7 x 60
= 420 km
Distance of the two parks
= (312 + 420) ÷ 2
= 732 ÷ 2
= 366 km
Answer(s): (a) 312 km; (b) 366 km