1.If the product of X and Y is a positive number, is the sum of X and Y a negative number?
1>X > Y^5
2>X > Y^6
1>X > Y^5
2>X > Y^6
1.If the product of X and Y is a positive number, is the sum of X and Y a negative number?
1. X > Y^5
2. X > Y^6
If xy > 0, is x + y < 0?
Stmt 1. X > Y^5
X and Y can be either positives , negatives or X a positive and Y a negative. Here is an example;
When Y = 1 , X = 2 OR Y = -2 , X = -10 OR Y= (-2), X = 65. So is x + y < 0 , the answers are NO, Yes and No respectively. So insuff.
Stmt 2. X > Y^6
X and Y can only be both positives or both negatives or Y is a negative. Here is an example;
When Y = 1 , X = 2 OR Y = (-2) , X = 65 OR Y = (-5) , X = -5. The answers to whether x + y < 0 are No ,No and Yes respectively.So insuff.
Merging the stmts is not helpful.
Thus E
