On Wednesdays, Kate usually buys some guava juice. But the only place she can buy guava juice is the local health foo...

alannadels April 17, 2022

Difference between A and C

I do not understand the differences between A and C, and why A is correct and C is not. Could this be further explained please?

Create a free account to read and take part in forum discussions.

Already have an account? log in

Emil-Kunkin April 21, 2022

Hi Alannadels,

For parallel reasoning questions, I like to "anonymize" the stimulus. We can do this as follows.

Most Y are X
If Y - Z
Thus at least one X and Z

Answer choice A could be diagrammed as follows.

If UC -> T
Most D are UC
Thus some D UC

Although the order of the first two statements are flipped, the overall logic is exactly the same.

C can be diagrammed as

Most D are UC
If UC - T
Thus If D - T

The conclusion here is entirely different, this is an absolute, while the stimulus was only a some.