At 5 a.m., Jeremy and Sean left Park P and drove towards Park Q at average speeds of 81 km/h and 61 km/h respectively. Upon reaching Park Q, Jeremy rested for 2 hours. He then headed back for Park P at an average speed of 81 km/h along the same route. Jeremy and Sean met each other on their way at 12 noon.
- How far had Jeremy covered when he met Sean on the way?
- How far apart were the two parks?
(a)
Time taken by Sean = 7 h
Time taken by Jeremy = 7 - 2 = 5 h
Distance covered by Jeremy when he met Sean
= 5 x 81
= 405 km
(b)
Distance travelled by Sean
= 7 x 61
= 427 km
Distance of the two parks
= (405 + 427) ÷ 2
= 832 ÷ 2
= 416 km
Answer(s): (a) 405 km; (b) 416 km
