If a and b are positive integers, is a!/b! an integer?
(1) (b - a)(b + a) = 7! + 1
(2) b + a = 11
Statement 1 alone is sufficient but statement 2 alone is not sufficient to answer the question asked.
Statement 2 alone is sufficient but statement 1 alone is not sufficient to answer the question asked.
Both statements 1 and 2 together are sufficient to answer the question but neither statement is sufficient alone.
Each statement alone is sufficient to answer the question.
Statements 1 and 2 are not sufficient to answer the question asked and additional data is needed to answer the statements.
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