At 8 a.m., Liam and Dylan left Park Y and drove towards Park Z at average speeds of 85 km/h and 51 km/h respectively. Upon reaching Park Z, Liam rested for 2 hours. He then headed back for Park Y at an average speed of 85 km/h along the same route. Liam and Dylan met each other on their way at 2 p.m.
- How far had Liam covered when he met Dylan on the way?
- How far apart were the two parks?
(a)
Time taken by Dylan = 6 h
Time taken by Liam = 6 - 2 = 4 h
Distance covered by Liam when he met Dylan
= 4 x 85
= 340 km
(b)
Distance travelled by Dylan
= 6 x 51
= 306 km
Distance of the two parks
= (340 + 306) ÷ 2
= 646 ÷ 2
= 323 km
Answer(s): (a) 340 km; (b) 323 km