At 13 55, Carl left Town M for Town N, driving at a speed of 64 km/h. At 16 55, Flynn also left Town M for Town N driving at a certain speed. Both of them did not change their speed throughout the journey. At 18 55, both of them passed a temple that was 256 km away from Town N. How many minutes earlier did Flynn reach Town N than Carl?

Distance that Carl travelled
= 5 x 64
= 320 km

Distance between Town M and Town N
= 320 + 256
= 576 km

Since Flynn passed the temple at the same time as Carl, it means that Flynn travelled 320 km in 2 hours.

Flynn's speed during the journey
= 320 ÷ 2
= 160 km/h

Duration that Flynn took to reach Town N after passing the temple
= 256 ÷ 160
= 1.6 h

Duration that Carl took to reach Town N after passing the temple
= 256 ÷ 64
= 4 h

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

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

Flynn reached Town N 144 minutes earlier than Carl.

Answer(s): 144 min