At 7 a.m., Reggie and Peter left Park J and drove towards Park K at average speeds of 78 km/h and 60 km/h respectively. Upon reaching Park K, Reggie rested for 2 hours. He then headed back for Park J at an average speed of 78 km/h along the same route. Reggie and Peter met each other on their way at 2 p.m.
- How far had Reggie covered when he met Peter on the way?
- How far apart were the two parks?
(a)
Time taken by Peter = 7 h
Time taken by Reggie = 7 - 2 = 5 h
Distance covered by Reggie when he met Peter
= 5 x 78
= 390 km
(b)
Distance travelled by Peter
= 7 x 60
= 420 km
Distance of the two parks
= (390 + 420) ÷ 2
= 810 ÷ 2
= 405 km
Answer(s): (a) 390 km; (b) 405 km