At 5 a.m., Fred and Ahmad left Park E and drove towards Park F at average speeds of 71 km/h and 62 km/h respectively. Upon reaching Park F, Fred rested for 3 hours. He then headed back for Park E at an average speed of 71 km/h along the same route. Fred and Ahmad met each other on their way at 2 p.m.
- How far had Fred covered when he met Ahmad on the way?
- How far apart were the two parks?
(a)
Time taken by Ahmad = 9 h
Time taken by Fred = 9 - 3 = 6 h
Distance covered by Fred when he met Ahmad
= 6 x 71
= 426 km
(b)
Distance travelled by Ahmad
= 9 x 62
= 558 km
Distance of the two parks
= (426 + 558) ÷ 2
= 984 ÷ 2
= 492 km
Answer(s): (a) 426 km; (b) 492 km