1000 CR test A, Q7

This topic has expert replies
Senior | Next Rank: 100 Posts
Posts: 33
Joined: Sat Apr 14, 2007 8:29 am

1000 CR test A, Q7

by ns88 » Sat Apr 14, 2007 3:26 pm
1000 CR test A, Q7

Does this have to anything with Boolean logic?

I would appreciate any help that’s explains the logic behind answer C.


7. If A, then B.
If B, then C.
If C, then D.

If all of the statements above are true, which of the following must also be true?

(A) If D, then A.
(B) If not B, then not C.
(C) If not D, then not A.
(D) If D, then E.
(E) If not A, then not D.

User avatar
Legendary Member
Posts: 2469
Joined: Thu Apr 20, 2006 12:09 pm
Location: BtG Underground
Thanked: 85 times
Followed by:14 members

by aim-wsc » Sat Apr 14, 2007 7:33 pm
continue here: https://www.beatthegmat.com/viewtopic.php?t=677
I think this problem's been discussed earlier...

Senior | Next Rank: 100 Posts
Posts: 33
Joined: Sat Apr 14, 2007 8:29 am

by ns88 » Sat Apr 14, 2007 7:47 pm
thanks, aim-wsc

:D

User avatar
Legendary Member
Posts: 2469
Joined: Thu Apr 20, 2006 12:09 pm
Location: BtG Underground
Thanked: 85 times
Followed by:14 members

by aim-wsc » Sat Apr 14, 2007 7:51 pm
We are building a thread for all 1000 CR docs https://www.beatthegmat.com/viewtopic.php?t=1893

Hope you check these before starting a new thread.
oh! by the way thanks, this problem was not listed in that thread so now I have added it... :)

Similarly we have sp thread fo 1000 SC :D

Moderator
Posts: 772
Joined: Wed Aug 30, 2017 6:29 pm
Followed by:6 members

by BTGmoderatorRO » Tue Sep 12, 2017 6:09 pm
I would go with option C because C and cause D.
If D is absent, then A cannot function as well. Thus, A is also absent. Using the same logic in this context, we can say if not D, then not A.