At 9 a.m., Sam and Zeph left Park W and drove towards Park X at average speeds of 89 km/h and 56 km/h respectively. Upon reaching Park X, Sam rested for 3 hours. He then headed back for Park W at an average speed of 89 km/h along the same route. Sam and Zeph met each other on their way at 2 p.m.
- How far had Sam covered when he met Zeph on the way?
- How far apart were the two parks?
(a)
Time taken by Zeph = 5 h
Time taken by Sam = 5 - 3 = 2 h
Distance covered by Sam when he met Zeph
= 2 x 89
= 178 km
(b)
Distance travelled by Zeph
= 5 x 56
= 280 km
Distance of the two parks
= (178 + 280) ÷ 2
= 458 ÷ 2
= 229 km
Answer(s): (a) 178 km; (b) 229 km