At 7 a.m., Mark and Vincent left Park R and drove towards Park S at average speeds of 94 km/h and 50 km/h respectively. Upon reaching Park S, Mark rested for 3 hours. He then headed back for Park R at an average speed of 94 km/h along the same route. Mark and Vincent met each other on their way at 12 noon.
- How far had Mark covered when he met Vincent on the way?
- How far apart were the two parks?
(a)
Time taken by Vincent = 5 h
Time taken by Mark = 5 - 3 = 2 h
Distance covered by Mark when he met Vincent
= 2 x 94
= 188 km
(b)
Distance travelled by Vincent
= 5 x 50
= 250 km
Distance of the two parks
= (188 + 250) ÷ 2
= 438 ÷ 2
= 219 km
Answer(s): (a) 188 km; (b) 219 km
