At 11 55, Gabriel left Town K for Town L, driving at a speed of 66 km/h. At 13 55, Julian also left Town K for Town L driving at a certain speed. Both of them did not change their speed throughout the journey. At 15 55, both of them passed a farm that was 198 km away from Town L. How many minutes earlier did Julian reach Town L than Gabriel?

Distance that Gabriel travelled
= 4 x 66
= 264 km

Distance between Town K and Town L
= 264 + 198
= 462 km

Since Julian passed the farm at the same time as Gabriel, it means that Julian travelled 264 km in 2 hours.

Julian's speed during the journey
= 264 ÷ 2
= 132 km/h

Duration that Julian took to reach Town L after passing the farm
= 198 ÷ 132
= 1.5 h

Duration that Gabriel took to reach Town L after passing the farm
= 198 ÷ 66
= 3 h

Difference between the time they took to reach Town L
= 3 - 1.5
= 1.5 h

1 h = 60 min
1.5 h = 1.5 x 60 = 90 min

Julian reached Town L 90 minutes earlier than Gabriel.

Answer(s): 90 min