• Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • examPAL
    Most awarded test prep in the world
    Now free for 30 days

    Available with Beat the GMAT members only code

    MORE DETAILS
    examPAL
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer

IR Question from GMATPrep

This topic has 2 member replies
Kevinst Junior | Next Rank: 30 Posts Default Avatar
Joined
28 Feb 2012
Posted:
29 messages
Followed by:
6 members
Upvotes:
11

IR Question from GMATPrep

Post Sun Aug 19, 2012 1:21 pm
Hey,

please look at the IR question posted here:
http://www.beatthegmat.com/graphics-interpretation-t109048.html

According to the solution in GMATPrep, the _beginning_ of the Cambrian Period marks the onset of a new era, eon and period.
While it is obvious that it marks the onset of a new period, it isn't clear to me why it should also mark the onset of a new eon and era. According to the provided graphic, its _end_ marks the onset of a new era and eon, but its beginning still lies within another era and eon.

Any thoughts?

Thank you,
Kevin

  • +1 Upvote Post
  • Quote
  • Flag
vrchen Junior | Next Rank: 30 Posts Default Avatar
Joined
29 Jul 2012
Posted:
11 messages
Test Date:
9/6/2012
Post Tue Sep 04, 2012 4:14 pm
Hi All,

I just redid the problem and realize the reason the answer is the Cambrian period is because the timeline shows how far in the past each eon/era/period is. Therefore, what looked like the "end" of the Cambrian period is actually the beginning of the period that started ~550 years ago.

I guess I should've taken the hint that the PREcambrian era came before the cambrian period.

Hope this helps!

  • +1 Upvote Post
  • Quote
  • Flag
vrchen Junior | Next Rank: 30 Posts Default Avatar
Joined
29 Jul 2012
Posted:
11 messages
Test Date:
9/6/2012
Post Mon Aug 27, 2012 9:23 pm
Hi All,

I am also curious about this question as I came to the same conclusion as Kevinst.

The answer I selected was Precambrian eon as it marks the end of the Paleozoic era which I equate with the start of another (unnamed?) era. It also marks the beginning of the of the Vendian period.

Any thoughts on this would be greatly appreciated!

  • +1 Upvote Post
  • Quote
  • Flag

Best Conversation Starters

1 lheiannie07 108 topics
2 ardz24 68 topics
3 Roland2rule 65 topics
4 LUANDATO 53 topics
5 VJesus12 52 topics
See More Top Beat The GMAT Members...

Most Active Experts

1 image description GMATGuruNY

The Princeton Review Teacher

146 posts
2 image description Jeff@TargetTestPrep

Target Test Prep

119 posts
3 image description Rich.C@EMPOWERgma...

EMPOWERgmat

114 posts
4 image description Scott@TargetTestPrep

Target Test Prep

101 posts
5 image description EconomistGMATTutor

The Economist GMAT Tutor

85 posts
See More Top Beat The GMAT Experts