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  1. DAT Destroyer

    DAT DAT Math Practice: Multiples of 3 and 5 (LCM) | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

    Can you solve this DAT Quantitative Reasoning problem? This practice problem tests your understanding of least common multiples (LCM) and number theory—concepts that frequently appear on the DAT. Recognizing that a number divisible by both 3 and 5 must be a multiple of 15 makes this problem...
  2. DAT Destroyer

    DAT DAT Heart Rate Percentage Change Challenge | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

    A percentage increase followed by a percentage decrease does not necessarily cancel out. Can you solve this DAT Quantitative Reasoning problem before viewing the answer on the second slide? Many students incorrectly assume that a 50% increase followed by a 30% decrease results in a 20%...
  3. DAT Destroyer

    DAT DAT QR Challenge: Seating Arrangements | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

    Can you solve this problem before going to Slide 2? Many students correctly calculate the restricted arrangements in this classic DAT permutation problem but miss what the question is actually asking. The key is to determine the difference between the unrestricted and restricted seating...
  4. DAT Destroyer

    DAT DAT General Chemistry Question of the Day: Molecular Geometry Application — Dr. Jim Romano | DAT Destroyer | OAT Destroyer

    DAT questions often test application, not memorization. Today’s General Chemistry Question of the Day focuses on a molecular geometry application involving a coordination compound. Rather than asking for definitions, this question requires reasoning by analogy to determine how molecular...