At 5 a.m., Zeph and Neave left Park X and drove towards Park Y at average speeds of 71 km/h and 50 km/h respectively. Upon reaching Park Y, Zeph rested for 3 hours. He then headed back for Park X at an average speed of 71 km/h along the same route. Zeph and Neave met each other on their way at 12 noon.
- How far had Zeph covered when he met Neave on the way?
- How far apart were the two parks?
(a)
Time taken by Neave = 7 h
Time taken by Zeph = 7 - 3 = 4 h
Distance covered by Zeph when he met Neave
= 4 x 71
= 284 km
(b)
Distance travelled by Neave
= 7 x 50
= 350 km
Distance of the two parks
= (284 + 350) ÷ 2
= 634 ÷ 2
= 317 km
Answer(s): (a) 284 km; (b) 317 km