At 6 a.m., Will and Andy left Park P and drove towards Park Q at average speeds of 78 km/h and 62 km/h respectively. Upon reaching Park Q, Will rested for 3 hours. He then headed back for Park P at an average speed of 78 km/h along the same route. Will and Andy met each other on their way at 2 p.m.
- How far had Will covered when he met Andy on the way?
- How far apart were the two parks?
(a)
Time taken by Andy = 8 h
Time taken by Will = 8 - 3 = 5 h
Distance covered by Will when he met Andy
= 5 x 78
= 390 km
(b)
Distance travelled by Andy
= 8 x 62
= 496 km
Distance of the two parks
= (390 + 496) ÷ 2
= 886 ÷ 2
= 443 km
Answer(s): (a) 390 km; (b) 443 km