At 5 a.m., Charlie and Valen left Park A and drove towards Park B at average speeds of 91 km/h and 60 km/h respectively. Upon reaching Park B, Charlie rested for 3 hours. He then headed back for Park A at an average speed of 91 km/h along the same route. Charlie and Valen met each other on their way at 2 p.m.
- How far had Charlie covered when he met Valen on the way?
- How far apart were the two parks?
(a)
Time taken by Valen = 9 h
Time taken by Charlie = 9 - 3 = 6 h
Distance covered by Charlie when he met Valen
= 6 x 91
= 546 km
(b)
Distance travelled by Valen
= 9 x 60
= 540 km
Distance of the two parks
= (546 + 540) ÷ 2
= 1086 ÷ 2
= 543 km
Answer(s): (a) 546 km; (b) 543 km