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I’m excited about the problem I have to share with you today in the latest installment of our Know the Code series. ☺ Interest rate GMAT problems can be extremely annoying—you might find yourself spending 4 minutes and still having to guess in the end. So your first decision is whether you even want to tackle these kinds of problems in the first place.

But there are some things you can learn that could make answering interest rate GMAT problems a lot less irritating. Try out this Integrated Reasoning (IR) Two-Part problem from the GMATPrep® free practice exams. (Note: This one is an IR question, but I could absolutely see them testing the same principle on a Quant problem.) Read more