At 10 40, Owen left Town U for Town V, driving at a speed of 72 km/h. At 13 40, Dylan also left Town U for Town V driving at a certain speed. Both of them did not change their speed throughout the journey. At 15 40, both of them passed a cinema that was 216 km away from Town V. How many minutes earlier did Dylan reach Town V than Owen?
Duration that Owen travelled from 10 40 to 15 40 = 5 h
Distance that Owen travelled
= 5 x 72
= 360 km
Distance between Town U and Town V
= 360 + 216
= 576 km
Since Dylan passed the cinema at the same time as Owen, it means that Dylan travelled 360 km in 2 hours.
Dylan's speed during the journey
= 360 ÷ 2
= 180 km/h
Duration that Dylan took to reach Town V after passing the cinema
= 216 ÷ 180
= 1.2 h
Duration that Owen took to reach Town V after passing the cinema
= 216 ÷ 72
= 3 h
Difference between the time they took to reach Town V
= 3 - 1.2
= 1.8 h
1 h = 60 min
1.8 h = 1.8 x 60 = 108 min
Dylan reached Town V 108 minutes earlier than Owen.
Answer(s): 108 min