How do I improve at Functions questions?

Start by reviewing the Functions theory guide, then practice in this difficulty band and track which concepts you miss. Focus on accuracy first, then work on pacing so you finish each question in about two minutes.

Where can I learn Functions theory?

Our free Functions guide on the GMAT Sprint Quant hub explains the core concepts and formulas, with worked examples you can practice against.

Easy - 505-555 Functions Problem Solving GMAT Questions

Easy - 505-555 difficulty Functions Problem Solving GMAT practice questions. Every question below links to its own page with the full solution, community comments, and discussion.

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Practice Easy - 505-555 Functions Problem Solving questions

Easy - 505-555 Functions Problem Solving questions measure your ability to evaluate and compose functions, including unusual defined operations.. Here you'll find 9 free questions in this band — every one shows the correct answer, with full step-by-step solutions available once you sign in for free. Practice in this difficulty range to build speed and accuracy, then move up a tier as your scores improve.

Question Type

All types(4)Problem Solving(1457)Critical Reasoning(1024)Data Sufficiency(112)Reading Comprehension

Latest questions

9 questions

PS · Problem Solving

505-555

Functions

For all numbers x and y, the operation ? is defined by

x?y=(x+y)(x-y)+(y-x)(y+x)+xy

.
What is the value of [m]\sqrt{12}? \sqrt{...

Frequently asked questions

Are these Functions Problem Solving questions free?▾

Yes. All 9 questions in this collection are free to practice. Each question shows the correct answer, and signing up for a free account unlocks the complete step-by-step explanations.

What does Easy - 505-555 difficulty mean on the GMAT?▾

The 505-555 band maps to the GMAT Focus scoring range. Questions in this band are easy - 505-555 — ideal for building accuracy before you move up to harder tiers.