#12 - Alice will volunteer to work on the hospital fund-raising drive

[Administrator]

Complete Question Explanation

Parallel Reasoning. The correct answer choice is (C).

Answer choice (A):

Answer choice (B):

Answer choice (C): This is the correct answer choice.

Answer choice (D):

Answer choice (E):

This explanation is still in progress. Please post any questions below!

[salgado145]

HI THIS IS MY PASSAGE DIAGRAM

A—----> BV+ DS
CONTRA :
NOT BV
OR —-----> A
NOT DS
THIS IS MY UNDERSTANDING OF MY CONTRAPOSITIVE
IF BRUCE DOESN;T VOLUNTEER OR DRIVERS DON'T SELECT HIM ALICE IS NOT VOLUNTEERING
I JUST WANT TO MAKE SURE THAT OR MEANS THAT IF ONE OF THE SUFFICIENT DOESN’T HAPPEN NECESSARY (ALICE ) IS NOT HAPPENING

THIS IS THE DIAGRAM FOR ANSWER CHOICE C
JP(JIM PARTIES)
S:SAM
E:ELAINE

JP—---> S AND E GO

NOT S
OR—----> NOT JP
NOT E

I WOULD LIKE TO KNOW IF MY DIAGRAMS AND UNDERSTANDING IS CORRECT OR IF I AM MAKING ERRORS . THANK YOU

[Dana D]

Hey Salgado,

You are correct - in both the stimulus and the correct answer (C), there are 2 necessary conditions given for something to occur (for Alice to volunteer or for Jim to party). Both conditions must occur, but we are told one of these necessary conditions did not occur (either no one will let Bruce drive or Elaine isn't going to the party) which means we can also negate the sufficient.

Good job!