Question 32, chapter 11, GRE 5 lb. book

[franalej]

For question 32, chapter 11, page 458, GRE 5 lb. book, please could you explain why would it be wrong to apply to it the formula of:

Group 1 + Group 2 + Neither - Both = Total

Your answer on page 471 applies a different logic. Please could you elucidate?

Thanks,

-F

[tommywallach]

Hey Franalej,

The equivalent of that equation here would be:

ALL THE NUTS + ALL THE FRUITS - BOTH + NEITHER = 1

3/4 + ALL THE FRUITS - 1/3 + NEITHER = 1

Because we still have two unknowns, this method won't work here.

Hope that helps!

-t

[franalej]

Hi Tommy, thanks.

Then, would it be wrong to assume, for this question, that "Neither" is equal to zero since the problem does not mention an amount for Neither?

Thanks for all your, it has been helpful.

-F

Hey Franalej,

The equivalent of that equation here would be:

ALL THE NUTS + ALL THE FRUITS - BOTH + NEITHER = 1

3/4 + ALL THE FRUITS - 1/3 + NEITHER = 1

Because we still have two unknowns, this method won't work here.

Hope that helps!

-t

[tommywallach]

Yes, that would be incorrect to assume. Nothing in the passage made clear that people have to choose one of the two (if it did, then you'd be totally safe using the equation!).

-t

[franalej]

Thanks a lot!

-F

Yes, that would be incorrect to assume. Nothing in the passage made clear that people have to choose one of the two (if it did, then you'd be totally safe using the equation!).

-t

[tommywallach]

Glad to help!

-t