Welcome! Check out our free B-School Guides to learn how you compare with other applicants.

## Oak trees

tagged by:

This topic has 1 expert reply and 70 member replies
Goto page
Joined
01 Jan 2009
Posted:
2567 messages
Followed by:
406 members
Thanked:
596 times
GMAT Score:
770
Oak trees Wed Sep 01, 2010 3:22 am
Elapsed Time: 00:00
• Lap #[LAPCOUNT] ([LAPTIME])
Source: Beat The GMAT Practice Questions

If there are more oak trees in Oregon than there are leaves on any one Oregon oak tree, and if every Oregon oak tree has at least one leaf, then __________.

Which of the following most logically completes the passage?

A. the average number of oak leaves per Oregon oak tree must be less than half the number of Oregon oak trees
B. there are fewer leaves on at least one Oregon oak tree than half the number of those trees
C. there must be at least two oak trees in Oregon with the same number of leaves
D. there must be at least as many Oregon oak trees with half as many leaves as the Oregon tree with the most leaves, as there are Oregon oak trees with twice as many leaves as the Oregon oak tree with the fewest leaves
E. there must be more oak trees than any other type of tree in Oregon

Last edited by DanaJ on Thu Sep 02, 2010 1:44 pm; edited 2 times in total

Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
saurabhmahajan Really wants to Beat The GMAT!
Joined
07 Jan 2010
Posted:
250 messages
Thanked:
10 times
Test Date:
Oct 2010
Target GMAT Score:
700+
Wed Sep 01, 2010 5:34 am
Wow!!!!
what options...i wish not to see such CR's on D day...

IMO:A

_________________
Thanks and regards,
Saurabh Mahajan

I can understand you not winning,but i will not forgive you for not trying.

uwhusky GMAT Titan
Joined
28 Apr 2010
Posted:
1172 messages
Followed by:
3 members
Thanked:
72 times
Test Date:
Target GMAT Score:
GMAT Score:
Wed Sep 01, 2010 8:45 am
Umm.........

C.

abhi84v Rising GMAT Star
Joined
10 Jun 2010
Posted:
39 messages
Thanked:
6 times
Test Date:
17-Sep-2010
Target GMAT Score:
750
GMAT Score:
770
Wed Sep 01, 2010 12:26 pm
IMO C

Let's say any tree has x leaves max
n > x

so say all trees have different no of leaves and each has at least one leaf

So the no of leaves on the trees can be 1,2,....,x

However there are more than x trees

So it stands to reason that there are at least two trees with the same number of leaves

Thanked by: sekloong, MegW, BTG14
Joined
01 Jan 2009
Posted:
2567 messages
Followed by:
406 members
Thanked:
596 times
GMAT Score:
770
Wed Sep 01, 2010 3:59 pm
This one made my brain hurt as well...

Here's the explanation from the Beat The GMAT Practice Questions, hope you enjoy it as much as I did!

Try to make the problem more solvable by simplifying. First, delete the words “oak” and “Oregon.” This helps remove unnecessary clutter. Second, try to solve by working with a finite number of trees and leaves:

If we have four trees, then each tree has at least one leaf but no more than three.

(C) is true for any number of trees. For example, if there are three trees, one tree may have one leaf, another tree may have two leaves, but if the third tree had either three or no leaves, then that would contradict the initial statement. The third tree must have either one or two leaves (i.e., at least two trees must have the same number of leaves).

(A) is not necessarily true; if, for instance, we have four trees, each of them could have three leaves.

(B) is impossible if there are only two trees because each tree must have at least one leaf (as weird as it may sound to have just two trees in Oregon!)

(D) isn’t necessarily true; for example, all trees could have the same number of leaves. This is a typical example of confusing syntax.

(E) is out because there's no talk about any other tree type. We're strictly interested in oak trees!

kapur.arnav Really wants to Beat The GMAT!
Joined
19 Jul 2010
Posted:
126 messages
Thanked:
5 times
Fri Nov 05, 2010 3:47 am
DanaJ wrote:
Source: Beat The GMAT Practice Questions

If there are more oak trees in Oregon than there are leaves on any one Oregon oak tree, and if every Oregon oak tree has at least one leaf, then __________.

Which of the following most logically completes the passage?

A. the average number of oak leaves per Oregon oak tree must be less than half the number of Oregon oak trees
B. there are fewer leaves on at least one Oregon oak tree than half the number of those trees
C. there must be at least two oak trees in Oregon with the same number of leaves
D. there must be at least as many Oregon oak trees with half as many leaves as the Oregon tree with the most leaves, as there are Oregon oak trees with twice as many leaves as the Oregon oak tree with the fewest leaves
E. there must be more oak trees than any other type of tree in Oregon
Took me nearly 2 mins to select C.... This is a 700+ q for sure...

Abhishek009 Really wants to Beat The GMAT!
Joined
11 Mar 2009
Posted:
146 messages
Followed by:
1 members
Thanked:
14 times
Thu Nov 18, 2010 3:10 am
DanaJ wrote:
Source: Beat The GMAT Practice Questions

If there are more oak trees in Oregon than there are leaves on any one Oregon oak tree, and if every Oregon oak tree has at least one leaf, then __________.

Which of the following most logically completes the passage?

A. the average number of oak leaves per Oregon oak tree must be less than half the number of Oregon oak trees
B. there are fewer leaves on at least one Oregon oak tree than half the number of those trees
C. there must be at least two oak trees in Oregon with the same number of leaves
D. there must be at least as many Oregon oak trees with half as many leaves as the Oregon tree with the most leaves, as there are Oregon oak trees with twice as many leaves as the Oregon oak tree with the fewest leaves
E. there must be more oak trees than any other type of tree in Oregon
Will go with C....

_________________
Abhishek

mk101 Rising GMAT Star
Joined
22 Oct 2010
Posted:
57 messages
Thanked:
1 times
Test Date:
Dont know
GMAT Score:
710
Sun Nov 21, 2010 9:39 pm
DanaJ wrote:
Source: Beat The GMAT Practice Questions

If there are more oak trees in Oregon than there are leaves on any one Oregon oak tree, and if every Oregon oak tree has at least one leaf, then __________.

Which of the following most logically completes the passage?

A. the average number of oak leaves per Oregon oak tree must be less than half the number of Oregon oak trees
B. there are fewer leaves on at least one Oregon oak tree than half the number of those trees
C. there must be at least two oak trees in Oregon with the same number of leaves
D. there must be at least as many Oregon oak trees with half as many leaves as the Oregon tree with the most leaves, as there are Oregon oak trees with twice as many leaves as the Oregon oak tree with the fewest leaves
E. there must be more oak trees than any other type of tree in Oregon
My answer "C" - t = no of trees and n = no of leaves atleast per tree... since t>n if n =1 then there must be two trees and both of them must have 1 leave each. If t =3 then the max no of leaves per tree =2 again if the first two trees have 1 and 2 leaves.. the third tree must have either 1 or 2 leaves........and so on by induction we can prove C

rishab1988 GMAT Destroyer!
Joined
09 Feb 2010
Posted:
332 messages
Followed by:
5 members
Thanked:
35 times
Test Date:
8th December
Target GMAT Score:
700+
GMAT Score:
720
Tue Nov 30, 2010 8:48 am

But I must add D is a very poorly constructed sentence.

"there must be at least as many Oregon oak trees with half as many leaves as the Oregon tree with the most leaves"

"as there are Oregon oak trees with twice as many leaves as the Oregon oak tree with the fewest leaves. "

D basically meant to say,if the there are 4 oak trees and 3 of those trees have 2 leaves and one of those trees has 1 leaf, then the number of oak trees[most number of leaves here is 2] that have 1 leaf must be same the number of oak trees that have 2 leaves.

As indicates comparison.what is the second part comparing to?

anirudhbhalotia Really wants to Beat The GMAT!
Joined
23 Nov 2010
Posted:
123 messages
Followed by:
2 members
Thanked:
5 times
Target GMAT Score:
800
Thu Dec 02, 2010 11:26 am
Ouch!

Have never come across such question in CR!

rishab1988 GMAT Destroyer!
Joined
09 Feb 2010
Posted:
332 messages
Followed by:
5 members
Thanked:
35 times
Test Date:
8th December
Target GMAT Score:
700+
GMAT Score:
720
Thu Dec 02, 2010 11:31 am

There are 2 issues about it

1) This is a very very LSAT like CR [you will never encounter such CR on GMAT]

Even if you did.You still need not worry for the following reason:

2) The language in statement D is ambiguous.The real test questions are very carefully edited.

I have done almost 200 LSAT CR questions,till date,and I have never encounter such ambiguous language as in answer choice D.Yes I have seen an LSAT question similar to this one but not with an ambiguous language as this one.

Taran Rising GMAT Star
Joined
01 Oct 2010
Posted:
56 messages
Thanked:
1 times
Test Date:
31 August, 2011
Target GMAT Score:
760
GMAT Score:
620
Mon Dec 06, 2010 11:35 pm
I agree.....even i was scratching my head

@DanaJ - You just explained it so easily. Cheers!!!!

arora007 Community Manager
Joined
17 Aug 2009
Posted:
1049 messages
Followed by:
25 members
Thanked:
45 times
Target GMAT Score:
XYZ
GMAT Score:
670
Mon Dec 13, 2010 7:40 am
Oh boy what was that!! Dana really u made it very simple...

_________________
http://www.skiponemeal.org/
Few things are impossible to diligence & skill.Great works are performed not by strength,but by perseverance

pm me if you find junk/spam/abusive language, Lets keep our community clean!!

whirlwind Just gettin' started!
Joined
07 Jun 2009
Posted:
4 messages
Sun Jan 30, 2011 2:15 pm
Ack! That was brutal!

coolly01 Just gettin' started!
Joined
21 Feb 2011
Posted:
29 messages
Sun Feb 27, 2011 7:06 pm
Is it D, although i dont understand totally what option D means (too complicated). But the other options are not correct the correct ones.

Can anyone explain me what option means?
I much appreciate

### Best Conversation Starters

1 varun289 40 topics
2 guerrero 21 topics
3 sana.noor 20 topics
4 killerdrummer 19 topics
5 sanaa.rizwan 14 topics
See More Top Beat The GMAT Members...

### Most Active Experts

1 Brent@GMATPrepNow

GMAT Prep Now Teacher

203 posts
2 GMATGuruNY

The Princeton Review Teacher

140 posts
3 Jim@StratusPrep

Stratus Prep

100 posts
4 Anju@Gurome

Gurome

99 posts