At 14 25, Valen left Town N for Town P, driving at a speed of 69 km/h. At 17 25, Wesley also left Town N for Town P driving at a certain speed. Both of them did not change their speed throughout the journey. At 20 25, both of them passed a hypermart that was 207 km away from Town P. How many minutes earlier did Wesley reach Town P than Valen?
Duration that Valen travelled from 14 25 to 20 25 = 6 h
Distance that Valen travelled
= 6 x 69
= 414 km
Distance between Town N and Town P
= 414 + 207
= 621 km
Since Wesley passed the hypermart at the same time as Valen, it means that Wesley travelled 414 km in 3 hours.
Wesley's speed during the journey
= 414 ÷ 3
= 138 km/h
Duration that Wesley took to reach Town P after passing the hypermart
= 207 ÷ 138
= 1.5 h
Duration that Valen took to reach Town P after passing the hypermart
= 207 ÷ 69
= 3 h
Difference between the time they took to reach Town P
= 3 - 1.5
= 1.5 h
1 h = 60 min
1.5 h = 1.5 x 60 = 90 min
Wesley reached Town P 90 minutes earlier than Valen.
Answer(s): 90 min