At 5 a.m., Ahmad and Sean left Park R and drove towards Park S at average speeds of 98 km/h and 56 km/h respectively. Upon reaching Park S, Ahmad rested for 3 hours. He then headed back for Park R at an average speed of 98 km/h along the same route. Ahmad and Sean met each other on their way at 12 noon.
- How far had Ahmad 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 Ahmad = 7 - 3 = 4 h
Distance covered by Ahmad when he met Sean
= 4 x 98
= 392 km
(b)
Distance travelled by Sean
= 7 x 56
= 392 km
Distance of the two parks
= (392 + 392) ÷ 2
= 784 ÷ 2
= 392 km
Answer(s): (a) 392 km; (b) 392 km