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27 Jul 2009, 19:48
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Is p > q?
(1) p + 5q is positive.
(2) p + 4q is negative.
(1) p + 5q is positive.
(2) p + 4q is negative.
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27 Jul 2009, 20:22
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I think C is the answer.
(1) INSUFF. p and q can be anything.
(2) INSUFF. p and q can be anything.
Now combine p and q.
We are told p+5q is positive.
And p+4q is negative.
Adding one q to p+4q makes it positive, which implies q MUST be positive and greater than p+4q.
For example if p+4q = -3, then for p+5q to be positive, q MUST be greater than equal to 4.
Similarly if p+4q = -24, then for P+5q to be positive, q MUST be greater than equal to 25.
So we know q is for sure positive, then the only way p+4q will be negative is when, p is negative number.
Example if p+4q=-24, and 4q is positive, then p MUST be a negative number which is -24-4q.
Hence combining (1) and (2) we get that p is always less then q.
What is the OA please?
(1) INSUFF. p and q can be anything.
(2) INSUFF. p and q can be anything.
Now combine p and q.
We are told p+5q is positive.
And p+4q is negative.
Adding one q to p+4q makes it positive, which implies q MUST be positive and greater than p+4q.
For example if p+4q = -3, then for p+5q to be positive, q MUST be greater than equal to 4.
Similarly if p+4q = -24, then for P+5q to be positive, q MUST be greater than equal to 25.
So we know q is for sure positive, then the only way p+4q will be negative is when, p is negative number.
Example if p+4q=-24, and 4q is positive, then p MUST be a negative number which is -24-4q.
Hence combining (1) and (2) we get that p is always less then q.
What is the OA please?
