A new computer system will not significantly increase an organization's efficiency unless the computer system require...

Ryan on September 17, 2019

Why is A correct? Why is D incorrect?


4 Replies

Julie on September 18, 2019

I think the key here is to note "new" and "existing" in the stimulus. If there's a new, more productive way of working, then there will be in increase in efficiency (NMPWW -> IE). But since the computer system is is fitting the existing way of work (~NMPWW), then it would have to be the case that there is not an increase in efficiency (~IE, answer choice A).

I read "most logically completes the argument" as a statement that would make the contrapositive statement " ____ -> ~NMPWW" true. Since the contrapositive of the S&N in the first sentence would be "~IE -> ~NMPWW", I think that would justify why (A) is correct.

Shunhe on December 22, 2019

@Ryan-Mahabir and @Julie-V,

Here, the stimulus is actually telling us something else: if a new system doesn't force employees to adopt new/better ways of working, then it won't significantly increase efficiency. (if ~FEANWW, then ~SIE)

We know that the new system will fit the existing ways of working. In other words, it won't force employees to adopt new/better ways of working. We can see that A results from our conditional logic. Hope this helps!

on January 9, 2020

Is "appreciable" the same as "significant"?

on November 18 at 09:03PM

Hello, I see written in the stimulus explanation that it starts with the contrapositive of the first conditionals correct? Or am I not reducing the unless statement correctly? Because I know that "unless" introduces a necessary, and then the sufficient is negated which would be
New computer increase -> computer system adopt new, more productive ways of working.
So am I correct in reading that the explanation in the stimulus explanation is of the contrapositive?