If a building has 6,000 square meters of floor space, how many offices are in the building?

1.Exactly ~$\frac{1}{4}$~ of the floor space is not used for offices.

2. There are exactly 20 executive offices and each of these occupies 3 times as much floor space as the average for all of the remaining offices.

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

EACH statement ALONE is sufficient.

Statements (1) and (2) TOGETHER are NOT sufficient.