At 6 a.m., Ethan and Zeph left Park C and drove towards Park D at average speeds of 94 km/h and 56 km/h respectively. Upon reaching Park D, Ethan rested for 2 hours. He then headed back for Park C at an average speed of 94 km/h along the same route. Ethan and Zeph met each other on their way at 12 noon.
- How far had Ethan covered when he met Zeph on the way?
- How far apart were the two parks?
(a)
Time taken by Zeph = 6 h
Time taken by Ethan = 6 - 2 = 4 h
Distance covered by Ethan when he met Zeph
= 4 x 94
= 376 km
(b)
Distance travelled by Zeph
= 6 x 56
= 336 km
Distance of the two parks
= (376 + 336) ÷ 2
= 712 ÷ 2
= 356 km
Answer(s): (a) 376 km; (b) 356 km
