Lesson: Lines and Angles

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the Improvement Charts are really great, thanks a lot =)

do you also have those for 2017 and for the Quantitative Review ? =)
gmat-admin's picture

No, we haven't created similar resources for the quant-only books.

no problem.

But found it for 2017

thank you! very helpful :)

would you recommend the Manhattan Quant Books ?

Ive got 1 month+ left (already went over official guide + math only + verbal only + 1729 videos on khan (73% wom mission), all magoosh videos, and soon all your videos :)

But still have serious doubts to get 700+
gmat-admin's picture

The Manhattan books are great. However, I’d like to point out that HOW you study is just as important as WHAT you study. In my opinion, many students don’t dig deep enough while learning the concepts tested on the GMAT.

Many students spend a lot of their time answering random/unrelated practice questions (a geometry question then a statistics question, algebra question, geometry question, probability question, etc.).

This strategy doesn’t allow you to fully explore the intricacies of each concept, and this is very limiting, because the test-makers can take ANY concept (no matter how simple) and create dozens of wildly different questions, each requiring a different approach. So, to achieve great score, you must answer tons of practice questions that are specifically-related to each individual concept tested on the GMAT.

Please note that, when I say “concept,” I’m not referring to broad topics like Statistics or Geometry; I’m referring to the *individual concepts* that comprise those topics. For example, the concepts that fall under the umbrella of “Geometry” include the properties of parallel lines, triangles, right triangles, special right triangles, quadrilaterals, circles, etc. For each of these, you need to understand/anticipate all of the various ways the test-makers can evaluate your knowledge.


sir i m having doubt in this question

Hi, even after going through the solutions mentioned for: http://gmatclub.com/forum/if-in-the-figure-above-l1-and-l2-are-parallel-what-is-x-224812.html

I am unable to understand the concept. Could you please tell me how i should approach this question and solve it?

gmat-admin's picture

Hi aanchal890,

I'm happy to help.

I provide a step-by-step solution here: https://gmatclub.com/forum/if-in-the-figure-above-l1-and-l2-are-parallel...

If you tell me which step(s) you'd like me to go over, I can help.


Hi Brent,

In questions like in the below link, should we never assume the lines to be parallel even though they are named as L1 and L2; L3 and L4?

gmat-admin's picture

Question link: https://gmatclub.com/forum/what-is-the-value-of-x-187602.html

That's correct; we can't assume that any lines are parallel unless we're told so (either directly or indirectly)


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