At 7 a.m., Albert and Julian left Park K and drove towards Park L at average speeds of 86 km/h and 64 km/h respectively. Upon reaching Park L, Albert rested for 3 hours. He then headed back for Park K at an average speed of 86 km/h along the same route. Albert and Julian met each other on their way at 2 p.m.
- How far had Albert covered when he met Julian on the way?
- How far apart were the two parks?
(a)
Time taken by Julian = 7 h
Time taken by Albert = 7 - 3 = 4 h
Distance covered by Albert when he met Julian
= 4 x 86
= 344 km
(b)
Distance travelled by Julian
= 7 x 64
= 448 km
Distance of the two parks
= (344 + 448) ÷ 2
= 792 ÷ 2
= 396 km
Answer(s): (a) 344 km; (b) 396 km