At 10 35, Brandon left Town V for Town W, driving at a speed of 72 km/h. At 11 35, Julian also left Town V for Town W driving at a certain speed. Both of them did not change their speed throughout the journey. At 14 35, both of them passed a farm that was 144 km away from Town W. How many minutes earlier did Julian reach Town W than Brandon?

Distance that Brandon travelled
= 4 x 72
= 288 km

Distance between Town V and Town W
= 288 + 144
= 432 km

Since Julian passed the farm at the same time as Brandon, it means that Julian travelled 288 km in 3 hours.

Julian's speed during the journey
= 288 ÷ 3
= 96 km/h

Duration that Julian took to reach Town W after passing the farm
= 144 ÷ 96
= 1.5 h

Duration that Brandon took to reach Town W after passing the farm
= 144 ÷ 72
= 2 h

Difference between the time they took to reach Town W
= 2 - 1.5
= 0.5 h

1 h = 60 min
0.5 h = 0.5 x 60 = 30 min

Julian reached Town W 30 minutes earlier than Brandon.

Answer(s): 30 min