At 6 a.m., Elijah and Ian left Park B and drove towards Park C at average speeds of 98 km/h and 57 km/h respectively. Upon reaching Park C, Elijah rested for 3 hours. He then headed back for Park B at an average speed of 98 km/h along the same route. Elijah and Ian met each other on their way at 12 noon.
- How far had Elijah covered when he met Ian on the way?
- How far apart were the two parks?
(a)
Time taken by Ian = 6 h
Time taken by Elijah = 6 - 3 = 3 h
Distance covered by Elijah when he met Ian
= 3 x 98
= 294 km
(b)
Distance travelled by Ian
= 6 x 57
= 342 km
Distance of the two parks
= (294 + 342) ÷ 2
= 636 ÷ 2
= 318 km
Answer(s): (a) 294 km; (b) 318 km