4. The capacity of glass X is 80 percent of the capacity of glass Y. Glass ... ...

The capacity of glass X is 80 percent of the capacity of glass Y. Glass X contains how many more ounces of punch than glass Y?

(1) Glass X contains 6 ounces of punch and is half-full, while glass Y is full.

(2) Glass X is 50 percent full, and glass Y is 30 percent full.


(A) if statement (1) ALONE is sufficient to answer the question but statement (2) alone is not sufficient;
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Exercise Set B