The theory test is split into 2 sections, mulitiple choice and hazard perception.

The multiple choice part is comprised of 50 questions in which you must achieve a score of 43. 

You will also have to complete a hazard perception test where you will see 14 clips with each clip having 1 developing hazard and 1 clip having 2 developing hazards.

You must achieve a score of 44/75 to pass this test with each developing hazard worth a maximum of 5 points, decreasing as the hazzard moves on. You must pass both the questions and hazard perception to pass the theory test as a whole.Current cost is £23.