Question

please help
If p∨q is true, then what must be true about the truth values of p and q?

Where p and q are statements, "p and q" is false if
p is false.

Which of the following statements is the contrapositive of "If I have money, then I spend it"?


If I don't have money, then I don't spend it.
If I spend money, then I have it.
If I don't spend money, then I don't have it.

Answer 1

If p v q is true, then either p is true and q is false or q is true and p is false. They represent distinct possibilities so they both can't be true.
For the contrapositive I went here: http://en.wikipedia.org/wiki/Contraposition
The answer is
C. If I don't spend money, then I don't have it

Answer 2

ok thanks matt