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.

Very easy - Sub 505 Functions Problem Solving GMAT Questions

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

Questions

With explanations

With comments

Total comments

Practice Very easy - Sub 505 Functions Problem Solving questions

Very easy - Sub 505 Functions Problem Solving questions measure your ability to evaluate and compose functions, including unusual defined operations.. Here you'll find 13 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(1710)Critical Reasoning(1023)Data Sufficiency(127)Reading Comprehension

Latest questions

13 questions

PS · Problem Solving

sub-505

Functions

For all positive numbers x, the function g is defined as

g(x) = \frac{1}{x}

. What is the result of

g(g(4) + g(\frac{1}{5}))

Frequently asked questions

Are these Functions Problem Solving questions free?▾

Yes. All 13 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 Very easy - Sub 505 difficulty mean on the GMAT?▾

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

Latest Community Comments

recent discussion across these questions

AbdullahOct 3

thanks, this one was easy once I remembered f_0 is just the starting value

onProblem Solving · Functions—Given the recurrence relations f_0 = c and f_n = f_n-1 + d for all n >...

MahakSep 26

Easy level for sure. g(f(x)) just means take x^2 and stick it into g. So x+4 becomes x^2+4.

onProblem Solving · Functions—Given that f(x) = x^2 and g(x) = x + 4, what is g(f(x)) =