At 5 a.m., Peter and Zane left Park R and drove towards Park S at average speeds of 90 km/h and 62 km/h respectively. Upon reaching Park S, Peter rested for 3 hours. He then headed back for Park R at an average speed of 90 km/h along the same route. Peter and Zane met each other on their way at 12 noon.
- How far had Peter covered when he met Zane on the way?
- How far apart were the two parks?
(a)
Time taken by Zane = 7 h
Time taken by Peter = 7 - 3 = 4 h
Distance covered by Peter when he met Zane
= 4 x 90
= 360 km
(b)
Distance travelled by Zane
= 7 x 62
= 434 km
Distance of the two parks
= (360 + 434) ÷ 2
= 794 ÷ 2
= 397 km
Answer(s): (a) 360 km; (b) 397 km
