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May 1508:30 AM PDT
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Struggling with Boldface or Paradox questions in GMAT Critical Reasoning (CR)? Boldface and Paradox CR questions are often overlooked amidst the other more common GMAT CR question types. But mastering these can significantly boost your Verbal score.- May 15
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Struggling to finish the GMAT on time? You’re not alone. The #1 reason students score lower than expected on the GMAT isn’t lack of knowledge or silly mistakes—it’s running out of time. 
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Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations!
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We know Strengthen and Weaken questions account for more than 50% of the CR questions on the GMAT. With CR becoming even more important on GMAT Focus, it's time you strengthen your weaknesses with an approach that improves your solving time and accuracy!
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Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.- May 18
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Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. - Jun 10
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15 Mar 2022, 05:24
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The sum can be rewritten as :
( \(2^2-1^2\)) + ( \(4^2-3^2\)) +................................
= ( 3 ) + ( 7 ) + ( 11) .............................
Sum of 10 terms. This is an AP with a common difference of 4.
\(\frac{n}{2}\cdot\left(2a\ +\left(n-1\right)\cdot d\right)\)
Hence the sum is given by :
\(5\cdot\left(6+36\right)\)
= 210.
( \(2^2-1^2\)) + ( \(4^2-3^2\)) +................................
= ( 3 ) + ( 7 ) + ( 11) .............................
Sum of 10 terms. This is an AP with a common difference of 4.
\(\frac{n}{2}\cdot\left(2a\ +\left(n-1\right)\cdot d\right)\)
Hence the sum is given by :
\(5\cdot\left(6+36\right)\)
= 210.
19 Mar 2025, 04:58
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Hello from the GMAT Club BumpBot!
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Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
