At 12 50, Harry left Town N for Town P, driving at a speed of 69 km/h. At 14 50, Oscar also left Town N for Town P driving at a certain speed. Both of them did not change their speed throughout the journey. At 17 50, both of them passed a park that was 207 km away from Town P. How many minutes earlier did Oscar reach Town P than Harry?

Distance that Harry travelled
= 5 x 69
= 345 km

Distance between Town N and Town P
= 345 + 207
= 552 km

Since Oscar passed the park at the same time as Harry, it means that Oscar travelled 345 km in 3 hours.

Oscar's speed during the journey
= 345 ÷ 3
= 115 km/h

Duration that Oscar took to reach Town P after passing the park
= 207 ÷ 115
= 1.8 h

Duration that Harry took to reach Town P after passing the park
= 207 ÷ 69
= 3 h

Difference between the time they took to reach Town P
= 3 - 1.8
= 1.2 h

1 h = 60 min
1.2 h = 1.2 x 60 = 72 min

Oscar reached Town P 72 minutes earlier than Harry.

Answer(s): 72 min