At 6 a.m., Bryan and Liam left Park K and drove towards Park L at average speeds of 90 km/h and 54 km/h respectively. Upon reaching Park L, Bryan rested for 2 hours. He then headed back for Park K at an average speed of 90 km/h along the same route. Bryan and Liam met each other on their way at 12 noon.
- How far had Bryan covered when he met Liam on the way?
- How far apart were the two parks?
(a)
Time taken by Liam = 6 h
Time taken by Bryan = 6 - 2 = 4 h
Distance covered by Bryan when he met Liam
= 4 x 90
= 360 km
(b)
Distance travelled by Liam
= 6 x 54
= 324 km
Distance of the two parks
= (360 + 324) ÷ 2
= 684 ÷ 2
= 342 km
Answer(s): (a) 360 km; (b) 342 km