At 6 a.m., Ethan and Lee left Park K and drove towards Park L at average speeds of 98 km/h and 58 km/h respectively. Upon reaching Park L, Ethan rested for 2 hours. He then headed back for Park K at an average speed of 98 km/h along the same route. Ethan and Lee met each other on their way at 1 p.m.
- How far had Ethan covered when he met Lee on the way?
- How far apart were the two parks?
(a)
Time taken by Lee = 7 h
Time taken by Ethan = 7 - 2 = 5 h
Distance covered by Ethan when he met Lee
= 5 x 98
= 490 km
(b)
Distance travelled by Lee
= 7 x 58
= 406 km
Distance of the two parks
= (490 + 406) ÷ 2
= 896 ÷ 2
= 448 km
Answer(s): (a) 490 km; (b) 448 km