At 12 40, Will left Town U for Town V, driving at a speed of 88 km/h. At 15 40, Oliver also left Town U for Town V driving at a certain speed. Both of them did not change their speed throughout the journey. At 18 40, both of them passed a grocery store that was 264 km away from Town V. How many minutes earlier did Oliver reach Town V than Will?

Distance that Will travelled
= 6 x 88
= 528 km

Distance between Town U and Town V
= 528 + 264
= 792 km

Since Oliver passed the grocery store at the same time as Will, it means that Oliver travelled 528 km in 3 hours.

Oliver's speed during the journey
= 528 ÷ 3
= 176 km/h

Duration that Oliver took to reach Town V after passing the grocery store
= 264 ÷ 176
= 1.5 h

Duration that Will took to reach Town V after passing the grocery store
= 264 ÷ 88
= 3 h

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

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

Oliver reached Town V 90 minutes earlier than Will.

Answer(s): 90 min