At 6 a.m., Justin and Sean left Park K and drove towards Park L at average speeds of 87 km/h and 63 km/h respectively. Upon reaching Park L, Justin rested for 2 hours. He then headed back for Park K at an average speed of 87 km/h along the same route. Justin and Sean met each other on their way at 12 noon.
- How far had Justin covered when he met Sean on the way?
- How far apart were the two parks?
(a)
Time taken by Sean = 6 h
Time taken by Justin = 6 - 2 = 4 h
Distance covered by Justin when he met Sean
= 4 x 87
= 348 km
(b)
Distance travelled by Sean
= 6 x 63
= 378 km
Distance of the two parks
= (348 + 378) ÷ 2
= 726 ÷ 2
= 363 km
Answer(s): (a) 348 km; (b) 363 km