At 6 a.m., Ahmad and Rael left Park F and drove towards Park G at average speeds of 81 km/h and 62 km/h respectively. Upon reaching Park G, Ahmad rested for 2 hours. He then headed back for Park F at an average speed of 81 km/h along the same route. Ahmad and Rael met each other on their way at 2 p.m.
- How far had Ahmad covered when he met Rael on the way?
- How far apart were the two parks?
(a)
Time taken by Rael = 8 h
Time taken by Ahmad = 8 - 2 = 6 h
Distance covered by Ahmad when he met Rael
= 6 x 81
= 486 km
(b)
Distance travelled by Rael
= 8 x 62
= 496 km
Distance of the two parks
= (486 + 496) ÷ 2
= 982 ÷ 2
= 491 km
Answer(s): (a) 486 km; (b) 491 km