At 10 45, Julian left Town B for Town C, driving at a speed of 75 km/h. At 11 45, Eric also left Town B for Town C driving at a certain speed. Both of them did not change their speed throughout the journey. At 14 45, both of them passed a temple that was 150 km away from Town C. How many minutes earlier did Eric reach Town C than Julian?

Distance that Julian travelled
= 4 x 75
= 300 km

Distance between Town B and Town C
= 300 + 150
= 450 km

Since Eric passed the temple at the same time as Julian, it means that Eric travelled 300 km in 3 hours.

Eric's speed during the journey
= 300 ÷ 3
= 100 km/h

Duration that Eric took to reach Town C after passing the temple
= 150 ÷ 100
= 1.5 h

Duration that Julian took to reach Town C after passing the temple
= 150 ÷ 75
= 2 h

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

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

Eric reached Town C 30 minutes earlier than Julian.

Answer(s): 30 min