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You are here: Home / GMAT / Official GMAT Guides / 2018 Official GMAT Quantitative Review /

Question 209 Data Sufficiency 2018 GMAT Quantitative Review

Question 209 Data Sufficiency 2018 GMAT Quantitative Review

 
Video explanation[PQID: DS03989]: In the figure shown, quadrilateral ABCD is inscribed in a circle…

Comments

  1. Aleem says

    May 4, 2022 at 10:11 PM

    Hi,

    If i just use the clue “radius = 5” and imagine the quadrilateral as a square, I can solve it without the data given. Does that break the question in any way?

    Reply
    • GMAT Quantum says

      May 6, 2022 at 9:39 AM

      Hi,

      Are you suggesting that we don’t need any of the statements at all? The radius of 5 alone is not enough to establish that the perimeter of the quadrilateral is a unique value. This is a data sufficiency question and the two statements are only sufficient if we have a unique value for the perimeter.

      Sure if we knew that the quadrilateral is a square that is inscribed in the circle, then just the radius alone would be enough to find the perimeter of the quadrilateral. However, that is not the case here. I hope this makes sense.

      Reply

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