Data Sufficiency Practice Test 3

Directions: Each question below is followed by two Statements I and II. You have to determine whether the data given in the Statement Is sufficient for answering the question. You should use the data and your knowledge of Mathematics to choosebetween the possible answers.
(1) If the Statement I alone is sufficient to answer the question, but the Statement II alone is not sufficient.
(2) If the Statement II alone is sufficient to answer the question, but the Statement I alone is not sufficient.
(3) If you cannot get the answer from the Statements I and II together, but need even more data.
(4) If both the Statements I and II together are needed to answer the question.