At 7 a.m., Oscar and Archie left Park U and drove towards Park V at average speeds of 80 km/h and 50 km/h respectively. Upon reaching Park V, Oscar rested for 3 hours. He then headed back for Park U at an average speed of 80 km/h along the same route. Oscar and Archie met each other on their way at 12 noon.
- How far had Oscar covered when he met Archie on the way?
- How far apart were the two parks?
(a)
Time taken by Archie = 5 h
Time taken by Oscar = 5 - 3 = 2 h
Distance covered by Oscar when he met Archie
= 2 x 80
= 160 km
(b)
Distance travelled by Archie
= 5 x 50
= 250 km
Distance of the two parks
= (160 + 250) ÷ 2
= 410 ÷ 2
= 205 km
Answer(s): (a) 160 km; (b) 205 km
