Blog

The Quest for 700: Weekly GMAT Challenge (Answer)

Yesterday, Manhattan GMAT posted a GMAT question on our blog. Today, they have followed up with the answer:

First, construct the first seven terms, though only out to a few decimal places, following the given pattern.

A1 = 1.23…
A2 = 2.46…
A3 = 3.69…
A4 = 4.812…
A5 = 5.10…
A6 = 6.12…
A7 = 7.14…

Now, to add up the first seven terms, you should be strategic about how many decimal places to keep. You can drop the hundredths place and get a good approximation with the tenths place—and if you find the sum too close to a boundary between choices, then you can refine your answer if necessary.

1.2 + 2.4 + 3.6 + 4.8 + 5.1 + 6.1 + 7.1 = 30.3
Including more decimal places would only add a couple of tenths to the sum—not enough to tip the sum over 31.

The correct answer is C.



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

  • 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