Blog

# The Quest for 700: Weekly GMAT Challenge (Answer)

Yesterday, Integrated Learning posted a 700 level GMAT question on our blog. Today, they have followed up with the answer:

Ans. C

To be a perfect square, you must be able to take the square root of Q.  Practically, that means both x and y need to be even numbers.

Statement 1: We learn that Q has at least 4 3’s and 2 7’s in its prime factors, but we don’t know there aren’t more than that.  Q could have 5 3’s, which case y would be 5 and you would not be able to square root Q.

Statement 2: Since 243 is 35 and 343 is 73, Q has less than 5 3’s, and less than 3 7’s in its prime factors.  But again, y could be any number less than 5 and x any number less than 3, even or odd.

Together – Q has exactly 4 3’s and 2 7’s in its prime factors and is therefore a square of an integer.

Integrated Learning provides professional, experienced GMAT tutors throughout the United States.

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.

### Upcoming Deadlines

• Columbia J-Term (Round 2)
• Cambridge Judge (Round 1)
• HBS (Round 1)
• Penn Wharton (Round 1)
• Notre Dame Mendoza (Early Decision)
• Virginia Darden (Early Decision)
• Michigan Ross (Round 1)
• Columbia (Round 1)
• INSEAD (August Intake)
• Stanford GSB (Round 1)
• Yale SOM (Round 1)
• Northwestern Kellogg (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