At 5 a.m., Lee and Carl left Park U and drove towards Park V at average speeds of 70 km/h and 52 km/h respectively. Upon reaching Park V, Lee rested for 3 hours. He then headed back for Park U at an average speed of 70 km/h along the same route. Lee and Carl met each other on their way at 12 noon.
- How far had Lee covered when he met Carl on the way?
- How far apart were the two parks?
(a)
Time taken by Carl = 7 h
Time taken by Lee = 7 - 3 = 4 h
Distance covered by Lee when he met Carl
= 4 x 70
= 280 km
(b)
Distance travelled by Carl
= 7 x 52
= 364 km
Distance of the two parks
= (280 + 364) ÷ 2
= 644 ÷ 2
= 322 km
Answer(s): (a) 280 km; (b) 322 km
