At 6 a.m., Sean and Brandon left Park Q and drove towards Park R at average speeds of 77 km/h and 51 km/h respectively. Upon reaching Park R, Sean rested for 2 hours. He then headed back for Park Q at an average speed of 77 km/h along the same route. Sean and Brandon met each other on their way at 12 noon.
- How far had Sean covered when he met Brandon on the way?
- How far apart were the two parks?
(a)
Time taken by Brandon = 6 h
Time taken by Sean = 6 - 2 = 4 h
Distance covered by Sean when he met Brandon
= 4 x 77
= 308 km
(b)
Distance travelled by Brandon
= 6 x 51
= 306 km
Distance of the two parks
= (308 + 306) ÷ 2
= 614 ÷ 2
= 307 km
Answer(s): (a) 308 km; (b) 307 km