Careers
posted by
Sifat
- January 18 2011 11:57:50 PM
1. This statement is only true if statement 5 is false.
2. This statement is true if statements 4 or 5, or both 4 and 5 are true.
3. This statement is false only if both statements 6 and 1 are true.
4. Mary is a nurse
5. Karen is an artist.
6. Sarah is a photographer.
Reply by
Caprico
- January 19 2011 11:07:03 AM
What is the riddle?
Statement 5 is false by the way...
Reply by
Sifat
- January 20 2011 11:41:35 PM
O sorry, the riddle is, Is Mary a Nurse or not?
Reply by
Caprico
- January 24 2011 04:28:39 AM
Umm...
Mary may or may not be a Nurse.
When 5 is false and 6 is true, Statements 1 becomes true, and 3 becomes false. So the truth values now are
1 - T
3 - F
5 - F
6 - T
Now 2 may be T or F, which implies 4 may be T or F.
Are you sure you're not missing anything else out?
Reply by
Sifat
- January 26 2011 09:12:15 AM
I am sure.... I am not missing anything else