At 14 50, Nick left Town E for Town F, driving at a speed of 99 km/h. At 15 50, Flynn also left Town E for Town F driving at a certain speed. Both of them did not change their speed throughout the journey. At 18 50, both of them passed a library that was 198 km away from Town F. How many minutes earlier did Flynn reach Town F than Nick?
Duration that Nick travelled from 14 50 to 18 50 = 4 h
Distance that Nick travelled
= 4 x 99
= 396 km
Distance between Town E and Town F
= 396 + 198
= 594 km
Since Flynn passed the library at the same time as Nick, it means that Flynn travelled 396 km in 3 hours.
Flynn's speed during the journey
= 396 ÷ 3
= 132 km/h
Duration that Flynn took to reach Town F after passing the library
= 198 ÷ 132
= 1.5 h
Duration that Nick took to reach Town F after passing the library
= 198 ÷ 99
= 2 h
Difference between the time they took to reach Town F
= 2 - 1.5
= 0.5 h
1 h = 60 min
0.5 h = 0.5 x 60 = 30 min
Flynn reached Town F 30 minutes earlier than Nick.
Answer(s): 30 min
