Due to everybody having varied abilities, there’s no specific answer to this. You’ll need to combine reading the Highway Code along with theory test study materials such as books and DVD’s or apps for your phone or tablet. Much of the theory test is common sense, though there are some questions you’ll be asked that require study and comprehension.
To prepare for the theory test, it takes an average of between 10 to 20 hours of study. If you’re finding that after 20 hours of study you’re still struggling with the theory test, driving lessons will certainly help. Be sure to tell your driving instructor that you’re finding your theory test study difficult. Your instructor will ask you about which areas in particular and will then incorporate that into driving lessons.