At 5 a.m., Ken and Bryan left Park G and drove towards Park H at average speeds of 80 km/h and 60 km/h respectively. Upon reaching Park H, Ken rested for 2 hours. He then headed back for Park G at an average speed of 80 km/h along the same route. Ken and Bryan met each other on their way at 12 noon.
- How far had Ken covered when he met Bryan on the way?
- How far apart were the two parks?
(a)
Time taken by Bryan = 7 h
Time taken by Ken = 7 - 2 = 5 h
Distance covered by Ken when he met Bryan
= 5 x 80
= 400 km
(b)
Distance travelled by Bryan
= 7 x 60
= 420 km
Distance of the two parks
= (400 + 420) ÷ 2
= 820 ÷ 2
= 410 km
Answer(s): (a) 400 km; (b) 410 km
