At 6 a.m., Perry and Liam left Park R and drove towards Park S at average speeds of 82 km/h and 64 km/h respectively. Upon reaching Park S, Perry rested for 2 hours. He then headed back for Park R at an average speed of 82 km/h along the same route. Perry and Liam met each other on their way at 12 noon.
- How far had Perry 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 Perry = 6 - 2 = 4 h
Distance covered by Perry when he met Liam
= 4 x 82
= 328 km
(b)
Distance travelled by Liam
= 6 x 64
= 384 km
Distance of the two parks
= (328 + 384) ÷ 2
= 712 ÷ 2
= 356 km
Answer(s): (a) 328 km; (b) 356 km