At 6 a.m., Jack and Will left Park Q and drove towards Park R at average speeds of 72 km/h and 50 km/h respectively. Upon reaching Park R, Jack rested for 2 hours. He then headed back for Park Q at an average speed of 72 km/h along the same route. Jack and Will met each other on their way at 1 p.m.
- How far had Jack covered when he met Will on the way?
- How far apart were the two parks?
(a)
Time taken by Will = 7 h
Time taken by Jack = 7 - 2 = 5 h
Distance covered by Jack when he met Will
= 5 x 72
= 360 km
(b)
Distance travelled by Will
= 7 x 50
= 350 km
Distance of the two parks
= (360 + 350) ÷ 2
= 710 ÷ 2
= 355 km
Answer(s): (a) 360 km; (b) 355 km