Contradicting Answers

[sumithshah]

Hi

I have a general DS question. Lets say we have something like

IS X = 12

a) X=12
b) X=13

( Yes, I know its an idiotic question - but I made it up to highlight a point)

From statement A, we can say Yes for sure
From statement B, we can say NO for sure.

So then the Answer to this questions would be D or E?

Would appreciate a reply.

[RonPurewal]

Hi

I have a general DS question. Lets say we have something like

IS X = 12

a) X=12
b) X=13

( Yes, I know its an idiotic question - but I made it up to highlight a point)

From statement A, we can say Yes for sure
From statement B, we can say NO for sure.

So then the Answer to this questions would be D or E?

Would appreciate a reply.

one of the cardinal rules of DS is that the statements (1) and (2) are not allowed to contradict each other - in other words, there MUST be at least some overlap between the values that solve the two statements.
you've violated this rule, and, in so doing, have created a problem with no answer. (notice that, if there is some overlap, then this will never happen; if both statements give a single value, then they MUST give the same value.)