GMAT Critical Reasoning (CR) | New Critical Reasoning question bank by carcass

I admit my set is a bit tough and it should have done in the last stage of your preparation.

The key here is to stay really focus on, there is nothing in there to be confused dude

E) Fluoride generally prevents cavities. If there are no cavities, then there was no fluoride used.

If NO cavities, then fluorid IS present

If YES cavities, NO flouride.....so we have NO/YES or YES/NO

back to our question we have : YES bullet YES
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