At 11 50, Mark left Town U for Town V, driving at a speed of 60 km/h. At 14 50, Vincent also left Town U for Town V driving at a certain speed. Both of them did not change their speed throughout the journey. At 16 50, both of them passed a bank that was 240 km away from Town V. How many minutes earlier did Vincent reach Town V than Mark?

Distance that Mark travelled
= 5 x 60
= 300 km

Distance between Town U and Town V
= 300 + 240
= 540 km

Since Vincent passed the bank at the same time as Mark, it means that Vincent travelled 300 km in 2 hours.

Vincent's speed during the journey
= 300 ÷ 2
= 150 km/h

Duration that Vincent took to reach Town V after passing the bank
= 240 ÷ 150
= 1.6 h

Duration that Mark took to reach Town V after passing the bank
= 240 ÷ 60
= 4 h

Difference between the time they took to reach Town V
= 4 - 1.6
= 2.4 h

1 h = 60 min
2.4 h = 2.4 x 60 = 144 min

Vincent reached Town V 144 minutes earlier than Mark.

Answer(s): 144 min