At 7 a.m., Ahmad and Billy left Park H and drove towards Park J at average speeds of 70 km/h and 62 km/h respectively. Upon reaching Park J, Ahmad rested for 3 hours. He then headed back for Park H at an average speed of 70 km/h along the same route. Ahmad and Billy met each other on their way at 12 noon.
- How far had Ahmad covered when he met Billy on the way?
- How far apart were the two parks?
(a)
Time taken by Billy = 5 h
Time taken by Ahmad = 5 - 3 = 2 h
Distance covered by Ahmad when he met Billy
= 2 x 70
= 140 km
(b)
Distance travelled by Billy
= 5 x 62
= 310 km
Distance of the two parks
= (140 + 310) ÷ 2
= 450 ÷ 2
= 225 km
Answer(s): (a) 140 km; (b) 225 km
