At 6 a.m., Albert and Billy left Park W and drove towards Park X at average speeds of 90 km/h and 59 km/h respectively. Upon reaching Park X, Albert rested for 3 hours. He then headed back for Park W at an average speed of 90 km/h along the same route. Albert and Billy met each other on their way at 12 noon.
- How far had Albert covered when he met Billy on the way?
- How far apart were the two parks?
(a)
Time taken by Billy = 6 h
Time taken by Albert = 6 - 3 = 3 h
Distance covered by Albert when he met Billy
= 3 x 90
= 270 km
(b)
Distance travelled by Billy
= 6 x 59
= 354 km
Distance of the two parks
= (270 + 354) ÷ 2
= 624 ÷ 2
= 312 km
Answer(s): (a) 270 km; (b) 312 km