At 7 a.m., Justin and Caden left Park R and drove towards Park S at average speeds of 80 km/h and 61 km/h respectively. Upon reaching Park S, Justin rested for 2 hours. He then headed back for Park R at an average speed of 80 km/h along the same route. Justin and Caden met each other on their way at 1 p.m.
- How far had Justin covered when he met Caden on the way?
- How far apart were the two parks?
(a)
Time taken by Caden = 6 h
Time taken by Justin = 6 - 2 = 4 h
Distance covered by Justin when he met Caden
= 4 x 80
= 320 km
(b)
Distance travelled by Caden
= 6 x 61
= 366 km
Distance of the two parks
= (320 + 366) ÷ 2
= 686 ÷ 2
= 343 km
Answer(s): (a) 320 km; (b) 343 km