A theory is either true or false. Galileo s observations of : GMAT Critical Reasoning (CR)
Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 23 Feb 2017, 13:03

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A theory is either true or false. Galileo s observations of

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

SVP
Joined: 28 May 2005
Posts: 1723
Location: Dhaka
Followers: 7

Kudos [?]: 340 [0], given: 0

A theory is either true or false. Galileo s observations of [#permalink]

### Show Tags

20 Sep 2005, 10:55
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

### HideShow timer Statistics

A theory is either true or false. Galileoâ€™s observations of Jupiterâ€™s satellites showed that the Ptolemaic theory of the motion of celestial bodies is false. Therefore, since the Copernican theory of planetary motion is inconsistent with the Ptolemaic account, Galileoâ€™s observations of Jupiterâ€™s satellites proved the truth of the Copernican theory.

The argument above is open to the objection that it makes the uestionable assumption That

A. whoever first observed something inconsistent with the truth of the Ptolemaic theory should be credited with having proved that theory false

B. there are some possible observations that would be inconsistent with the account given by the Copernican theory but consistent with the account given by the Ptolemaic theory

C. the Ptolemaic and Copernican theories, being inconsistent, cannot both be based on exactly the same evidence

D. numerous counterexamples were necessary in order to show the Ptolemaic theory to be false

E. the Ptolemaic and Copernican theories, being inconsistent, cannot both be false

OA to be followed
_________________

hey ya......

If you have any questions
you can ask an expert
New!
Senior Manager
Joined: 29 Nov 2004
Posts: 484
Location: Chicago
Followers: 1

Kudos [?]: 26 [0], given: 0

### Show Tags

20 Sep 2005, 11:49
IMO E...
_________________

Fear Mediocrity, Respect Ignorance

Senior Manager
Joined: 27 Aug 2005
Posts: 331
Followers: 2

Kudos [?]: 145 [0], given: 0

### Show Tags

20 Sep 2005, 11:55
E also. The point is, they can both be false, and the assumption that they cannot both be false is unreasonable.
Senior Manager
Joined: 15 Aug 2005
Posts: 257
Location: Las Vegas, NV
Followers: 2

Kudos [?]: 4 [0], given: 0

### Show Tags

20 Sep 2005, 13:26
Another E. Same reasoning as CLF
Senior Manager
Joined: 22 Jun 2005
Posts: 363
Location: London
Followers: 1

Kudos [?]: 11 [0], given: 0

### Show Tags

20 Sep 2005, 14:36
The answer is E

i would go with the same explantion as mr coffefreak!!
Director
Joined: 09 Jul 2005
Posts: 595
Followers: 2

Kudos [?]: 57 [0], given: 0

### Show Tags

20 Sep 2005, 15:01
IMO E
SVP
Joined: 28 May 2005
Posts: 1723
Location: Dhaka
Followers: 7

Kudos [?]: 340 [0], given: 0

### Show Tags

21 Sep 2005, 01:02
Good explanation CLF

OA is E.
_________________

hey ya......

21 Sep 2005, 01:02
Similar topics Replies Last post
Similar
Topics:
A theory is either true or false. Galileo s observations of 1 08 Aug 2013, 08:59
A mutually exclusive theory is either true or false based on 0 08 Aug 2013, 09:18
From the observation 9 10 Jun 2010, 13:08
1 A theory is either true or false. Galileo's observations of 9 01 Dec 2009, 10:05
47 A theory is either true or false. Galileo s observations of 21 20 Dec 2007, 17:53
Display posts from previous: Sort by

# A theory is either true or false. Galileo s observations of

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.