The Quest for 700: Weekly GMAT Challenge

Each week Manhattan GMAT posts a GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge?

A function f(x) is defined as idempotent if, for every possible x, f(f(x)) = f(x). Which of the following functions is NOT idempotent?

(A) f(x) = x
(B) f(x) = –x
(C) f(x) = |x|
(D) f(x) = the greatest integer less than or equal to x
(E) f(x) = the least integer greater than or equal to x

Upcoming Events

Upcoming Deadlines

  • INSEAD (Round 4)
  • UNC Kenan-Flagler (Round 3)
  • USC Marshall (Round 3)
  • Carnegie Mellon Tepper (Round 3)
  • London Business School (Round 3)
  • Cambridge Judge (Round 4)
  • NYU Stern (Round 4)

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2020–2021 MBA Essay Analysis

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