Jump to content
Urch Forums

Sets


ebertc

Recommended Posts

Given: n(A & B) = 16 , n( B& C) = 18 , n (A& C) = 17

n( A& B& C) = ?

Statement 1:

only n(A & B) = 16-9 = 7

n(A&B) = only n ( A& B) + n(A & B & C)

16 = 7 + n(A & B & C)

n(A & B & C) = 9

Infact you are given what you want to find.

SUFF

 

Statement 2:

n(A), n(B), n© is given but we don't know :

n (A or B or C) = n(a) + n(b) + n© - n(A & B) - n( B& C) - n (A& C) + n(A & B & C)

 

INSUFF.

Answer A

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...