At 7 a.m., Lee and Henry left Park D and drove towards Park E at average speeds of 78 km/h and 64 km/h respectively. Upon reaching Park E, Lee rested for 2 hours. He then headed back for Park D at an average speed of 78 km/h along the same route. Lee and Henry met each other on their way at 12 noon.
- How far had Lee covered when he met Henry on the way?
- How far apart were the two parks?
(a)
Time taken by Henry = 5 h
Time taken by Lee = 5 - 2 = 3 h
Distance covered by Lee when he met Henry
= 3 x 78
= 234 km
(b)
Distance travelled by Henry
= 5 x 64
= 320 km
Distance of the two parks
= (234 + 320) ÷ 2
= 554 ÷ 2
= 277 km
Answer(s): (a) 234 km; (b) 277 km
