• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

LSAT Hacks

The Explanations That Should Have Come With The LSAT

  • Start Here
    • About
  • LSAT Explanations
  • LSAT Courses
  • Tutoring
    • Tutoring
    • Mastery seminars
    • Course
    • Books
  • Blog
  • Login
LSAT Explanations » LSAT Preptest 31 » Logical Reasoning 1 » Question 21

LSAT 31, Logical Reasoning I, Q21, LSATHacks

LSAT 31 Explanations

LR Question 21 Explanation, by LSATHacks

QUESTION TEXT: Bank deposits are credited on the date…

QUESTION TYPE: Parallel Reasoning

CONCLUSION: Alicia knows that the bank deposit was credited on the date of the transaction.

REASONING: Bank deposits are credited on the date of the transaction only when they are made before 3:00 pm. Alicia knows that the deposit was made before 3:00 pm. 

ANALYSIS: This argument ignores the possibility that Alicia doesn’t know under what conditions bank transactions are credited on the same day. (knowledge flaw)

Further, the argument says that bank transactions are credited only when they occur before 3:00 pm. That’s a necessary condition. It didn’t say that they are always credited if made before 3:00pm. So it’s possible that this bank transaction actually wasn’t credited. (sufficient-necessary flaw)

___________

  1. This makes one logical flaw. Only journalists can ask questions but that doesn’t mean that every journalist can ask questions. But it doesn’t make the flaw of knowledge.
  2. This makes the sufficient-necessary flaw but not the flaw of knowledge.
  3. CORRECT. This makes the sufficient-necessary flaw (it doesn’t say that George will be promoted if Helen resigns). It also makes the knowledge flaw. We don’t know if George knows that he could be promoted if Helen resigns. 
  4. This is a good argument. (4 isn’t a prime number, but that’s another story)
  5. This is a sort of good argument. More properly, Pat wants to work in a profession where the workers are poorly paid.
     
    Pat might still prefer to receive higher pay, but values working as a social worker more. This doesn’t commit the flaw of knowledge, as Pat likely knows what everyone else knows: social workers don’t earn much.

Previous Question
Table Of Contents
Next Question




Free Logical Reasoning lesson

Get a free sample of the Logical Reasoning Mastery Seminar. Learn tips for solving LR questions

Hi, I'm Graeme Blake

I created LSATHacks, and scored a 177 on the LSAT.

Check out LSATHacks All Access

It's your one stop shop for LSAT prep: 1000s more explanations, and courses for both intro and advanced students. Lifetime access to everything on LSATHacks and anything I add. Plus a consult with me to get you started on the right track.
---------
Socials and Updates: If you have any questions, you can can check out my TikTok videos or email me.

For updates, sign up for my email list. I update whenever I have new posts.

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Free LSAT Email Course

My best LSAT tips, straight to your inbox


New! LSATHacks All Access: Get every course on LSATHacks + members only explanations

LSATHacks Pro

Get a higher score with LSATHacks

LSAT Course, LSAT Mastery seminars, and 3,000 extra explanations. All for only $760 $349, satisfaction guaranteed. Sign up here: https://lsathacks.com/all-access/

Testimonials

Your emails are tremendously helpful. - Matt

Thanks for the tips! They were very helpful, and even make you feel like you studied a bit. Great insight and would love more! - Haj

Dear Graeme: MUCH MORE PLEASE!! Your explanations are very clear, and you give equal importance to why answers are WRONG, as well as why THE ANSWER is right!! Very well done. Thank you for all your efforts - Tom

These have been awesome. More please!!! - Caillie

The course was immensely helpful and has eased my nerves a lot. - Lovlean

© Copyright 2023 LSAT Hacks. All Rights Reserved. | FAQ/Legal

Disclaimer: Use of this site requires official LSAT preptests; the explanations are of no use without the preptests. If you do not have the accompanying preptests, you can find them here: LSAT preptests
LSAT is copyright of LSAC. LSAC does not review or endorse specific test preparation materials or services and has not reviewed this site.
×
Item Added to your Cart!
There are no products
Continue Shopping