With your off-road vehicle and your BE licence you tow a horse trailer with a permitted maximum mass of exactly 3,500 kg along the A28 towards Drachten. No other signs apply. What is your maximum speed there?
90 km/h, because the trailer is not heavier than 3,500 kg
80 km/h, because from 3,500 kg the 90 no longer applies
100 km/h, because that is the maximum with a trailer on the motorway
Explanation
False — you place the limit wrongly. The 90 km/h on expressways and motorways applies when the trailer's permitted maximum mass is not more than 3,500 kg; exactly 3,500 kg still qualifies. Only above that does it stay 80 (Book p.229).