At 6 a.m., Sam and Warren left Park E and drove towards Park F at average speeds of 78 km/h and 54 km/h respectively. Upon reaching Park F, Sam rested for 2 hours. He then headed back for Park E at an average speed of 78 km/h along the same route. Sam and Warren met each other on their way at 12 noon.
- How far had Sam covered when he met Warren on the way?
- How far apart were the two parks?
(a)
Time taken by Warren = 6 h
Time taken by Sam = 6 - 2 = 4 h
Distance covered by Sam when he met Warren
= 4 x 78
= 312 km
(b)
Distance travelled by Warren
= 6 x 54
= 324 km
Distance of the two parks
= (312 + 324) ÷ 2
= 636 ÷ 2
= 318 km
Answer(s): (a) 312 km; (b) 318 km