A car has a thinking distance of 12 m and a braking distance of 24 m. On a second journey at the same speed, the reaction time increases by 50% and the braking distance doubles. What is the new stopping distance?
54 m54\ \mathrm{m}54 m
66 m66\ \mathrm{m}66 m
60 m60\ \mathrm{m}60 m
72 m72\ \mathrm{m}72 m