What is the present age of the father?
(I) The sum of the present ages of the father and the son is 40.
(II) Five years ago, the fathers age was 5 times that of his son.

if the statement (I) alone is sufficient to answer the question, but (II) does not answer the question.

if the statement (II) alone is sufficient to answer the question but (I) does not answer the question.

if both the statements (I) and (II) are sufficient to answer the question but neither statement alone is sufficient.

if both the statements (I) and (II) together are not sufficient to answer the question and additional data is required.