At 7 a.m., Charlie and Dylan left Park K and drove towards Park L at average speeds of 71 km/h and 50 km/h respectively. Upon reaching Park L, Charlie rested for 3 hours. He then headed back for Park K at an average speed of 71 km/h along the same route. Charlie and Dylan met each other on their way at 12 noon.
- How far had Charlie covered when he met Dylan on the way?
- How far apart were the two parks?
(a)
Time taken by Dylan = 5 h
Time taken by Charlie = 5 - 3 = 2 h
Distance covered by Charlie when he met Dylan
= 2 x 71
= 142 km
(b)
Distance travelled by Dylan
= 5 x 50
= 250 km
Distance of the two parks
= (142 + 250) ÷ 2
= 392 ÷ 2
= 196 km
Answer(s): (a) 142 km; (b) 196 km
