At the risk of putting the cat amongst the pigeons I believe the question that was issued by the JAA was:
Q. An aeroplane maintains straight and level flight at a speed of 2 * VS. If a vertical gust causes a load factor of 2, the load factor n caused by the same gust at a speed of 1.3 VS would be:
(A) n = 1.65.
(B) n = 1.69.
(C) n = 4.
(D) n = 1.3.
With (A) being marked as the correct answer. I have seen an explanation of why the answer 'is' 1.65 rather than 1.69 but it was quite lengthy and certainly too much for a one mark question. What may have happened here is that the CAA received complaints about the original question then one of their resident 'experts' decided to tart it up and modified the answers. Which only goes to show, you can't polish a t*rd.