At 5 a.m., Henry and Perry left Park Q and drove towards Park R at average speeds of 71 km/h and 54 km/h respectively. Upon reaching Park R, Henry rested for 3 hours. He then headed back for Park Q at an average speed of 71 km/h along the same route. Henry and Perry met each other on their way at 2 p.m.
- How far had Henry covered when he met Perry on the way?
- How far apart were the two parks?
(a)
Time taken by Perry = 9 h
Time taken by Henry = 9 - 3 = 6 h
Distance covered by Henry when he met Perry
= 6 x 71
= 426 km
(b)
Distance travelled by Perry
= 9 x 54
= 486 km
Distance of the two parks
= (426 + 486) ÷ 2
= 912 ÷ 2
= 456 km
Answer(s): (a) 426 km; (b) 456 km