At 5 a.m., Carl and Zeph left Park V and drove towards Park W at average speeds of 90 km/h and 54 km/h respectively. Upon reaching Park W, Carl rested for 3 hours. He then headed back for Park V at an average speed of 90 km/h along the same route. Carl and Zeph met each other on their way at 12 noon.
- How far had Carl covered when he met Zeph on the way?
- How far apart were the two parks?
(a)
Time taken by Zeph = 7 h
Time taken by Carl = 7 - 3 = 4 h
Distance covered by Carl when he met Zeph
= 4 x 90
= 360 km
(b)
Distance travelled by Zeph
= 7 x 54
= 378 km
Distance of the two parks
= (360 + 378) ÷ 2
= 738 ÷ 2
= 369 km
Answer(s): (a) 360 km; (b) 369 km