At 6 a.m., Eric and Tom left Park S and drove towards Park T at average speeds of 91 km/h and 60 km/h respectively. Upon reaching Park T, Eric rested for 3 hours. He then headed back for Park S at an average speed of 91 km/h along the same route. Eric and Tom met each other on their way at 1 p.m.
- How far had Eric covered when he met Tom on the way?
- How far apart were the two parks?
(a)
Time taken by Tom = 7 h
Time taken by Eric = 7 - 3 = 4 h
Distance covered by Eric when he met Tom
= 4 x 91
= 364 km
(b)
Distance travelled by Tom
= 7 x 60
= 420 km
Distance of the two parks
= (364 + 420) ÷ 2
= 784 ÷ 2
= 392 km
Answer(s): (a) 364 km; (b) 392 km