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smar83
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Is pqr>0 ?
1)pq>0
2)q/r <0
My Approach:
Statment 1: p and q have same sign ( either +ve or -ve), but it does not tell us anything about r, so statment A is not sufficient.
Statment 2: either q or r has -ve sign, but does not tell us anything about P, statment B is not sufficient.
Hence D is not sufficient either. Now let us take both statments together..
If we consider, p and q to be positive from statment 1, then r is -ve from statment 2 ? hence pqr is not greater than zero.
Similarly, if we consider p and q to be -ve then r is +ve, hence pqr is not greater than zero.
They have just asked us, if pqr > 0 ? I guess ( C ) helps us determine it. They have not asked us the value of p,q or r, it can be anything and that should not matter.
But the OA is something else. Please help.
1)pq>0
2)q/r <0
My Approach:
Statment 1: p and q have same sign ( either +ve or -ve), but it does not tell us anything about r, so statment A is not sufficient.
Statment 2: either q or r has -ve sign, but does not tell us anything about P, statment B is not sufficient.
Hence D is not sufficient either. Now let us take both statments together..
If we consider, p and q to be positive from statment 1, then r is -ve from statment 2 ? hence pqr is not greater than zero.
Similarly, if we consider p and q to be -ve then r is +ve, hence pqr is not greater than zero.
They have just asked us, if pqr > 0 ? I guess ( C ) helps us determine it. They have not asked us the value of p,q or r, it can be anything and that should not matter.
But the OA is something else. Please help.
