At 7 a.m., Ken and Ryan left Park Z and drove towards Park A at average speeds of 79 km/h and 57 km/h respectively. Upon reaching Park A, Ken rested for 2 hours. He then headed back for Park Z at an average speed of 79 km/h along the same route. Ken and Ryan met each other on their way at 12 noon.
- How far had Ken covered when he met Ryan on the way?
- How far apart were the two parks?
(a)
Time taken by Ryan = 5 h
Time taken by Ken = 5 - 2 = 3 h
Distance covered by Ken when he met Ryan
= 3 x 79
= 237 km
(b)
Distance travelled by Ryan
= 5 x 57
= 285 km
Distance of the two parks
= (237 + 285) ÷ 2
= 522 ÷ 2
= 261 km
Answer(s): (a) 237 km; (b) 261 km
