At 7 a.m., Valen and Oscar left Park S and drove towards Park T at average speeds of 72 km/h and 57 km/h respectively. Upon reaching Park T, Valen rested for 2 hours. He then headed back for Park S at an average speed of 72 km/h along the same route. Valen and Oscar met each other on their way at 1 p.m.
- How far had Valen covered when he met Oscar on the way?
- How far apart were the two parks?
(a)
Time taken by Oscar = 6 h
Time taken by Valen = 6 - 2 = 4 h
Distance covered by Valen when he met Oscar
= 4 x 72
= 288 km
(b)
Distance travelled by Oscar
= 6 x 57
= 342 km
Distance of the two parks
= (288 + 342) ÷ 2
= 630 ÷ 2
= 315 km
Answer(s): (a) 288 km; (b) 315 km