At 6 a.m., Pierre and Valen left Park U and drove towards Park V at average speeds of 98 km/h and 54 km/h respectively. Upon reaching Park V, Pierre rested for 2 hours. He then headed back for Park U at an average speed of 98 km/h along the same route. Pierre and Valen met each other on their way at 12 noon.
- How far had Pierre covered when he met Valen on the way?
- How far apart were the two parks?
(a)
Time taken by Valen = 6 h
Time taken by Pierre = 6 - 2 = 4 h
Distance covered by Pierre when he met Valen
= 4 x 98
= 392 km
(b)
Distance travelled by Valen
= 6 x 54
= 324 km
Distance of the two parks
= (392 + 324) ÷ 2
= 716 ÷ 2
= 358 km
Answer(s): (a) 392 km; (b) 358 km