Last visit was: 24 Apr 2026, 12:02 It is currently 24 Apr 2026, 12:02
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
User avatar
bldutta94
Joined: 02 Oct 2022
Last visit: 31 Aug 2023
Posts: 4
Given Kudos: 2
Posts: 4
Kudos: 0
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
gmatophobia
User avatar
Quant Chat Moderator
Joined: 22 Dec 2016
Last visit: 19 Apr 2026
Posts: 3,173
Own Kudos:
Given Kudos: 1,862
Location: India
Concentration: Strategy, Leadership
Posts: 3,173
Kudos: 11,462
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
bldutta94
Joined: 02 Oct 2022
Last visit: 31 Aug 2023
Posts: 4
Given Kudos: 2
Posts: 4
Kudos: 0
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
MartyTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 24 Nov 2014
Last visit: 11 Aug 2023
Posts: 3,471
Own Kudos:
Given Kudos: 1,430
Status:Chief Curriculum and Content Architect
Affiliations: Target Test Prep
GMAT 1: 800 Q51 V51
Expert
Expert reply
GMAT 1: 800 Q51 V51
Posts: 3,471
Kudos: 5,641
Kudos
Add Kudos
Bookmarks
Bookmark this Post
bldutta94
Not (A or B)- Not A and Not B

So therefore Not (A or B)- Therefore Not A and Therefore Not B

But it is given in OG as Therefore Not (A or B)= Therefore Not A or Therefore Not B.
That expansion is not correct.

Therefore Not (A or B) = Therefore Not A and Not B.
User avatar
MartyTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 24 Nov 2014
Last visit: 11 Aug 2023
Posts: 3,471
Own Kudos:
Given Kudos: 1,430
Status:Chief Curriculum and Content Architect
Affiliations: Target Test Prep
GMAT 1: 800 Q51 V51
Expert
Expert reply
GMAT 1: 800 Q51 V51
Posts: 3,471
Kudos: 5,641
Kudos
Add Kudos
Bookmarks
Bookmark this Post
bldutta94
Not (A or B)

Let A be -Roy Did not play tennis
Let B be -Roy did not play baseball.

Roy did not play tennis and baseball is correct.

Now If I Add therefore to it.

Now the question is- It started raining, therefore (no tennis or baseball)

Option 1: It started raining therefore Roy did not play tennis or baseball.

Option 2: It started raining Roy did not play tennis and baseball.

Which one is correct?
It started raining; therefore, Roy did not play tennis or baseball. = It started raining; therefore, Roy did not play tennis and did not play baseball.
Moderators:
193 posts
General GMAT Forum Moderator
473 posts