At 6 a.m., Glen and Riordan left Park W and drove towards Park X at average speeds of 72 km/h and 51 km/h respectively. Upon reaching Park X, Glen rested for 2 hours. He then headed back for Park W at an average speed of 72 km/h along the same route. Glen and Riordan met each other on their way at 12 noon.
- How far had Glen covered when he met Riordan on the way?
- How far apart were the two parks?
(a)
Time taken by Riordan = 6 h
Time taken by Glen = 6 - 2 = 4 h
Distance covered by Glen when he met Riordan
= 4 x 72
= 288 km
(b)
Distance travelled by Riordan
= 6 x 51
= 306 km
Distance of the two parks
= (288 + 306) ÷ 2
= 594 ÷ 2
= 297 km
Answer(s): (a) 288 km; (b) 297 km