At what speed are trucks with a maximum authorized mass not exceeding 3.5 metric tons permitted to proceed outside populated areas?

Explanation

Outside built-up areas, a truck with a maximum authorized mass up to 3.5 t may go up to 90 km/h, like a passenger car (110 km/h on motorways). 70 km/h is the limit for trucks over 3.5 t, so it is the trap here (Rules, point 69).