At 7 a.m., Ivan and Sean left Park X and drove towards Park Y at average speeds of 76 km/h and 56 km/h respectively. Upon reaching Park Y, Ivan rested for 3 hours. He then headed back for Park X at an average speed of 76 km/h along the same route. Ivan and Sean met each other on their way at 2 p.m.
- How far had Ivan 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 Ivan = 7 - 3 = 4 h
Distance covered by Ivan when he met Sean
= 4 x 76
= 304 km
(b)
Distance travelled by Sean
= 7 x 56
= 392 km
Distance of the two parks
= (304 + 392) ÷ 2
= 696 ÷ 2
= 348 km
Answer(s): (a) 304 km; (b) 348 km