06-21-2014, 03:13 PM
I'm not sure whether this answer key is correct. I admit that I have not checked all the questions, but I've seen enough. For example, the first answer key is wrong. Answer for Q1 is (2), not (1). I will explain, when you have R>O=A>ST relation doesn't always hold. Because T can be greater than even R and that can perfectly fit with the expression (ex: 5>4=4>3<6). Whereas, S>R always holds true. R>O and O=A; therefore R>A. Again A>S. So, using transitive property, R>S or S
p.s: some people may try to convince that in the expression, all the preceding operators affect the successors; but that cannot be true because of the presence of '='. Even if that was true, (2) would still be correct.
p.s: some people may try to convince that in the expression, all the preceding operators affect the successors; but that cannot be true because of the presence of '='. Even if that was true, (2) would still be correct.