At 6 a.m., Glen and Billy left Park B and drove towards Park C at average speeds of 79 km/h and 62 km/h respectively. Upon reaching Park C, Glen rested for 2 hours. He then headed back for Park B at an average speed of 79 km/h along the same route. Glen and Billy met each other on their way at 12 noon.
- How far had Glen 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 Glen = 6 - 2 = 4 h
Distance covered by Glen when he met Billy
= 4 x 79
= 316 km
(b)
Distance travelled by Billy
= 6 x 62
= 372 km
Distance of the two parks
= (316 + 372) ÷ 2
= 688 ÷ 2
= 344 km
Answer(s): (a) 316 km; (b) 344 km