Blog

The Quest for 700: Weekly GMAT Challenge

Each week Manhattan GMAT posts a 700 level GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge?

For any operation ? that acts on two numbers x and y, the commutator is defined as x?yy?x. For which of the following operations is the commutator not equal to zero for some values of x and y?

I. x?y = xy
II. x?y = (xy)2
III. x?y = x3 + 3x2y + 3xy2 + y3

(A) I only
(B) II only
(C) III only
(D) II and III only
(E) I, II, and III



onTrack by mbaMission

A first-of-its-kind, on-demand MBA application experience that delivers a personalized curriculum for you and leverages interactive tools to guide you through the entire MBA application process.

Get Started!


Upcoming Events


Upcoming Deadlines

  • Cambridge Judge (Round 1)
  • HBS (Round 1)
  • INSEAD (August Intake)
  • Yale SOM (Round 1)
  • Berkeley Haas (Round 1)

Click here to see the complete deadlines


2024–2025 MBA Essay Tips

Click here for the 2023–2024 MBA Essay Tips


MBA Program Updates

Explore onTrack — mbaMission’s newest offering allowing you to learn at your own pace through video. Learn more