At 7 a.m., Valen and Cole left Park M and drove towards Park N at average speeds of 98 km/h and 54 km/h respectively. Upon reaching Park N, Valen rested for 2 hours. He then headed back for Park M at an average speed of 98 km/h along the same route. Valen and Cole met each other on their way at 2 p.m.
- How far had Valen covered when he met Cole on the way?
- How far apart were the two parks?
(a)
Time taken by Cole = 7 h
Time taken by Valen = 7 - 2 = 5 h
Distance covered by Valen when he met Cole
= 5 x 98
= 490 km
(b)
Distance travelled by Cole
= 7 x 54
= 378 km
Distance of the two parks
= (490 + 378) ÷ 2
= 868 ÷ 2
= 434 km
Answer(s): (a) 490 km; (b) 434 km