At 7 a.m., Sam and Liam left Park F and drove towards Park G at average speeds of 95 km/h and 63 km/h respectively. Upon reaching Park G, Sam rested for 2 hours. He then headed back for Park F at an average speed of 95 km/h along the same route. Sam and Liam met each other on their way at 2 p.m.
- How far had Sam covered when he met Liam on the way?
- How far apart were the two parks?
(a)
Time taken by Liam = 7 h
Time taken by Sam = 7 - 2 = 5 h
Distance covered by Sam when he met Liam
= 5 x 95
= 475 km
(b)
Distance travelled by Liam
= 7 x 63
= 441 km
Distance of the two parks
= (475 + 441) ÷ 2
= 916 ÷ 2
= 458 km
Answer(s): (a) 475 km; (b) 458 km