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May 11th, 2018, 08:01 AM   #1
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How to do this type of problems?

3) Two statements are given below followed by four alternative inference. Select the one which logically follows from the given information.

Statements:.

All books are pages
All pages are boxes

Inference:

(a) All boxes are books

(b) All books are boxes

(c) No books are boxes

(d) Some boxes are books

(A) (a) and (b) only

(B) (b) and (c) only

(C) (b) and (d) only

(D) (a) and (d) only

Choice C.
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May 11th, 2018, 08:30 AM   #2
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ever used a Venn diagram?
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May 11th, 2018, 08:44 AM   #3
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If books are pages and pages are boxes, it follows that books are boxes.

You might think that this implies that some boxes are books, but this conclusion requires the knowledge that some books exist, and so doesn't follow from the original two statements alone.

Hence the question is technically flawed, but choice (C) is the intended answer.
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May 14th, 2018, 08:11 AM   #4
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Quote:
Originally Posted by skeeter View Post
ever used a Venn diagram?
All books are pages

All pages are boxes

It means books = pages = boxes.

So only one circle will be formed. Why did you draw 3 circles?
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May 14th, 2018, 09:53 AM   #5
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All ants are insects.
All insects are animals.
Hence some animals are ants (assuming some ants exist).
It doesn't mean that ants = insects = animals.
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May 14th, 2018, 10:06 AM   #6
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Math Focus: Integrals
Quote:
Originally Posted by Ganesh Ujwal View Post
All books are pages

All pages are boxes

It means books = pages = boxes.

So only one circle will be formed. Why did you draw 3 circles?
It is important to note that 'are' != '='
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May 14th, 2018, 07:34 PM   #7
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I found the shortcut, which you guys failed to give me.

All books are pages

All pages are boxes

Second sentence ends with boxes so outer circle will contains boxes.

Second sentence starts with pages and First sentence ends with pages, so first inner circle will contains pages

First sentence starts with books, so second inner circle is marked with books.

Last edited by Ganesh Ujwal; May 14th, 2018 at 07:37 PM.
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May 14th, 2018, 07:40 PM   #8
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Quote:
Originally Posted by Ganesh Ujwal View Post
I found the shortcut, which you guys failed to give me.
We apologize most abjectly for any inconvenience we have caused you with our help service here.

Please be assured that every penny you have spent has been refunded and a check is in the mail.

I can't speak for the others but I will be ignoring all of your posts from now on. I wouldn't want to provide any answers that don't match exactly what you need.
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May 14th, 2018, 07:44 PM   #9
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Originally Posted by romsek View Post
I can't speak for the others but I will be ignoring all of your posts from now on. I wouldn't want to provide any answers that don't match exactly what you need.
Finally a user who understand my whole problem.
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