At 7 a.m., Sam and Rael left Park U and drove towards Park V at average speeds of 91 km/h and 57 km/h respectively. Upon reaching Park V, Sam rested for 2 hours. He then headed back for Park U at an average speed of 91 km/h along the same route. Sam and Rael met each other on their way at 1 p.m.
- How far had Sam covered when he met Rael on the way?
- How far apart were the two parks?
(a)
Time taken by Rael = 6 h
Time taken by Sam = 6 - 2 = 4 h
Distance covered by Sam when he met Rael
= 4 x 91
= 364 km
(b)
Distance travelled by Rael
= 6 x 57
= 342 km
Distance of the two parks
= (364 + 342) ÷ 2
= 706 ÷ 2
= 353 km
Answer(s): (a) 364 km; (b) 353 km