At 9 a.m., Ahmad and Harry left Park J and drove towards Park K at average speeds of 85 km/h and 61 km/h respectively. Upon reaching Park K, Ahmad rested for 2 hours. He then headed back for Park J at an average speed of 85 km/h along the same route. Ahmad and Harry met each other on their way at 1 p.m.
- How far had Ahmad covered when he met Harry on the way?
- How far apart were the two parks?
(a)
Time taken by Harry = 4 h
Time taken by Ahmad = 4 - 2 = 2 h
Distance covered by Ahmad when he met Harry
= 2 x 85
= 170 km
(b)
Distance travelled by Harry
= 4 x 61
= 244 km
Distance of the two parks
= (170 + 244) ÷ 2
= 414 ÷ 2
= 207 km
Answer(s): (a) 170 km; (b) 207 km