Explain GRE and GMAT quantitative basics with a simple example

The short version: GRE and GMAT quantitative basics refers to core arithmetic, algebra and data interpretation for graduate admission tests. A quick example makes it concrete — Data sufficiency asks whether you can answer, not what the answer is.

How to approach it step by step

Once one example makes sense, the method generalises: identify the question type first, then choose plugging in, back-solving or direct algebra. In a visual interactive session the example is built on screen piece by piece, so you see which quantity changes at each step instead of only reading a final answer. Ask for a harder variant and the explanation adapts on the spot.

Worked example

Data sufficiency asks whether you can answer, not what the answer is.

The mistake most learners make

Solving data sufficiency questions fully instead of testing sufficiency.

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