At 5 a.m., Zane and Ryan left Park K and drove towards Park L at average speeds of 87 km/h and 57 km/h respectively. Upon reaching Park L, Zane rested for 2 hours. He then headed back for Park K at an average speed of 87 km/h along the same route. Zane and Ryan met each other on their way at 2 p.m.
- How far had Zane covered when he met Ryan on the way?
- How far apart were the two parks?
(a)
Time taken by Ryan = 9 h
Time taken by Zane = 9 - 2 = 7 h
Distance covered by Zane when he met Ryan
= 7 x 87
= 609 km
(b)
Distance travelled by Ryan
= 9 x 57
= 513 km
Distance of the two parks
= (609 + 513) ÷ 2
= 1122 ÷ 2
= 561 km
Answer(s): (a) 609 km; (b) 561 km