GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 13 Dec 2018, 11:20

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
  • GMATbuster's Weekly GMAT Quant Quiz, Tomorrow, Saturday at 9 AM PST

     December 14, 2018

     December 14, 2018

     09:00 AM PST

     10:00 AM PST

    10 Questions will be posted on the forum and we will post a reply in this Topic with a link to each question. There are prizes for the winners.
  • The winning strategy for 700+ on the GMAT

     December 13, 2018

     December 13, 2018

     08:00 AM PST

     09:00 AM PST

    What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.

All etching tools are either pin-tipped or bladed. While some bladed

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

Hide Tags

Director
Director
avatar
V
Joined: 30 Jan 2016
Posts: 829
Location: United States (MA)
Reviews Badge
All etching tools are either pin-tipped or bladed. While some bladed  [#permalink]

Show Tags

New post 02 Dec 2018, 08:32
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

65% (01:47) correct 35% (02:04) wrong based on 101 sessions

HideShow timer Statistics

All etching tools are either pin-tipped or bladed. While some bladed etching tools are used for engraving, some are not. On the other hand, all pin-tipped etching tools are used for engraving. Thus, there are more etching tools that are used for engraving than there are etching tools that are not used for engraving.

The conclusion of the argument follows logically if which one of the following is assumed?

(A) All tools used for engraving are etching tools as well.
(B) There are as many pin-tipped etching tools as there are bladed etching tools.
(C) No etching tool is both pin-tipped and bladed.
(D) The majority of bladed etching tools are not used for engraving.
(E) All etching tools that are not used for engraving are bladed.

_________________

Non progredi est regredi

Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7106
Re: All etching tools are either pin-tipped or bladed. While some bladed  [#permalink]

Show Tags

New post 02 Dec 2018, 20:32
Akela wrote:
All etching tools are either pin-tipped or bladed. While some bladed etching tools are used for engraving, some are not. On the other hand, all pin-tipped etching tools are used for engraving. Thus, there are more etching tools that are used for engraving than there are etching tools that are not used for engraving.

The conclusion of the argument follows logically if which one of the following is assumed?

(A) All tools used for engraving are etching tools as well.
(B) There are as many pin-tipped etching tools as there are bladed etching tools.
(C) No etching tool is both pin-tipped and bladed.
(D) The majority of bladed etching tools are not used for engraving.
(E) All etching tools that are not used for engraving are bladed.


So there are two types of etching tools - pin typed or P and bladed or B.
Some B are used for etching tools, some are not .. NO specific numbers. It could be just 2-3 out of 100 or 40-50 out of 70, we do not know.
All P are used for etching tools. But HOW many P are there??

Conclusion..
More number of etching tools are used for engraving..

So all P and some B constitute the majority...
But what if p is 10 and B is 100, and some B could be just 20 out of 100..
So 30 out of 110 is not majority..
Therefore P has to be atleast as much as B..

Exactly what choice B tells us..

B
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

GMAT Club Bot
Re: All etching tools are either pin-tipped or bladed. While some bladed &nbs [#permalink] 02 Dec 2018, 20:32
Display posts from previous: Sort by

All etching tools are either pin-tipped or bladed. While some bladed

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.