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.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Are you ready to take your career to the next level but unsure whether to pursue an MBA or MIM degree? Well, you're in luck because today we're diving deep into this massive decision that could shape your future in the business world!
Earning a 100th percentile score on the GMAT Focus is no easy feat. But with Target Test Prep, any score is possible. Take Ming, a TTP student who recently scored 755 (Q86/V88/DI86) on the GMAT Focus Edition.
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment
The Target Test Prep team is excited to announce multiple live online classes for GMAT Focus test-takers in May. Our 40-hour LiveTeach program will take your GMAT Focus score to the next level.
Think a 100% GMAT Focus Verbal score is out of your reach? TTP will make you think again! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Describe what logical pattern is used and whether it is
[#permalink]
09 Apr 2005, 22:25
Show timer
00:00
A
B
C
D
E
Difficulty:
(N/A)
Question Stats:
0%
(00:00)
correct
0%
(00:00)
wrong
based on 0
sessions
HideShow
timer Statistics
Describe what logical pattern is used and whether it is valid one?
1. Whenever the red light is on and the green light is off, it means that the protection shields are no longer in place covering the uranium core. The protection shields are covering the uranium core, yet the green light is off. This means that the red light must be off also.
2. My biology text book tells me that no birds are mammals. I conclude that no mammals are birds.
3. Our leisure centre had a budget of £100,000 last year to be spent on a swimming pool costing £60,000 or a gymnasium costing £55,000. We went ahead and ordered the swimming pool to be built. Therefore we did not spend any money on having a gymnasium built last year.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Re: Describe what logical pattern is used and whether it is
[#permalink]
10 Apr 2005, 08:49
This is what I think, although I'd appreciate some other thoughts on it...
1. Whenever the red light is on and the green light is off, it means that the protection shields are no longer in place covering the uranium core. The protection shields are covering the uranium core, yet the green light is off. This means that the red light must be off also.
If X+Y, then Z. Since not Z, there cannot be X+Y. Since there are a set of conditions that need to be in place, this is a logical conclusion.
2. My biology text book tells me that no birds are mammals. I conclude that no mammals are birds.
A is not B, therefore B is not A. This logic is flawed, if you consider a rectangle is not a square (A is not B), but a square is a rectangle (B IS A).
3. Our leisure centre had a budget of £100,000 last year to be spent on a swimming pool costing £60,000 or a gymnasium costing £55,000. We went ahead and ordered the swimming pool to be built. Therefore we did not spend any money on having a gymnasium built last year.
They can pick either A OR B (according to the question). If they chose A, then they couldn't choose B. Of course, that doesn't mean that they couldn't have put money towards a gymnasium. I'm not sure...
Re: Describe what logical pattern is used and whether it is
[#permalink]
11 Apr 2005, 17:02
1. Whenever the red light is on and the green light is off, it means that the protection shields are no longer in place covering the uranium core. The protection shields are covering the uranium core, yet the green light is off. This means that the red light must be off also.
Logic:
(A)
If a, then b => Not b, Not a
(B)
If Not(X and Y) ==> (X is true, Not Y) or (Y is true, Not X): Correct Logic
If Not(X and Y) ==> (X is Not true, Y true) or (Y is Not true, X): Wrong Logic
So, in the question:
(red is on) and (green is off) ==> (No Protection shield)
using (A)
(There is Protection shield) ==> Not((red is on) and (green is off))
Now we have for second Part (using B):
Not((red is on) and (green is off)) ==> (green is off), (red is off) [x, not y]
So logically Correct.
2. My biology text book tells me that no birds are mammals. I conclude that no mammals are birds.
No birds are mammals.
=> X (no birds) -> Y(mammals)
=> No Y [no (mammals)] -> No X [no (no birds)]
=> no mammals -> birds
Logically Correct.
3. Our leisure centre had a budget of £100,000 last year to be spent on a swimming pool costing £60,000 or a gymnasium costing £55,000. We went ahead and ordered the swimming pool to be built. Therefore we did not spend any money on having a gymnasium built last year.
Logic:
(X or Y) == Not(X and Y) => (X is true, Not Y) or (Y is true, Not X): Correct Logic
(spent 60k on swimming pool) or (spent 55k in gymnasium) => (spent 60k on swimming pool), Not (spent 55k in gymnasium)
So statement is Logically correct
Banerjee, Honghu, Anand, Paul, others. Please comment on my above answers whether they are correct.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
gmatclubot
Re: Describe what logical pattern is used and whether it is [#permalink]