1. Official GMAT Practice Exams: The Graduate Management Admission Council (GMAC), the organization responsible for the GMAT, provides two free official practice exams on their website. These exams are designed to closely replicate the actual GMAT and include answer keys and explanations for each question. You can access the official GMAT practice exams here:
- [GMAT Official Practice Exam 1](https://www.mba.com/exams/gmat/prepare/sample-questions/gmat-practice-exam-1)
- [GMAT Official Practice Exam 2](https://www.mba.com/exams/gmat/prepare/sample-questions/gmat-practice-exam-2)
2. GMATPrep Software: The GMAC also offers the GMATPrep software, which provides additional practice questions, interactive tutorials, and two additional full-length practice exams. GMATPrep is widely considered one of the best resources for preparing for the GMAT. It can be purchased from the GMAC website.
3. MBA.com Practice Tests: MBA.com, another official website managed by GMAC, offers access to additional GMAT practice tests. These tests are created using real GMAT questions and include comprehensive answer explanations. You can purchase access to MBA.com practice tests here: [MBA.com Practice Tests](https://www.mba.com/exams/gmat/prepare/sample-questions)
4. Third-Party Practice Tests: There are also various third-party test preparation companies that provide GMAT practice tests. Some popular options include Manhattan Prep, Veritas Prep, and Kaplan. These companies typically offer comprehensive study guides and online courses alongside their practice tests.
It's essential to use reputable sources for GMAT practice tests to ensure that the questions are of high quality and accurately reflect the content and format of the real GMAT.