Taking the test requires 3 hours and 25 minutes, not including rest breaks and the time needed for the distribution and collection of test materials, as well as other test center procedures. Generally, you will need approximately 15-17 correct answers before your score moves above a 120. While the four scored sections used for each administration of the LSAT are most likely to be the same for each test at every test center, there are different editions in which the non-scored section is not the same and in which the order in which the scored sections appear will vary. Scores are determined entirely on the basis of the number of correct answers only.
Nothing is deducted or subtracted for wrong answers.
There is no penalty for guessing. You will often find you do not have enough time to complete every question. It is not unusual to find you are not able to finish each section of the test without a certain amount of guessing. While individual questions do vary in difficulty, each correct answer makes the same contribution to your score regardless of how easy or difficult it may be. Within each section, questions are not arranged in order of difficulty.