At 5 a.m., David and Cody left Park G and drove towards Park H at average speeds of 77 km/h and 59 km/h respectively. Upon reaching Park H, David rested for 2 hours. He then headed back for Park G at an average speed of 77 km/h along the same route. David and Cody met each other on their way at 12 noon.
- How far had David covered when he met Cody on the way?
- How far apart were the two parks?
(a)
Time taken by Cody = 7 h
Time taken by David = 7 - 2 = 5 h
Distance covered by David when he met Cody
= 5 x 77
= 385 km
(b)
Distance travelled by Cody
= 7 x 59
= 413 km
Distance of the two parks
= (385 + 413) ÷ 2
= 798 ÷ 2
= 399 km
Answer(s): (a) 385 km; (b) 399 km
