Explanation

Statement (1)

This is insufficient. For example, x could be 1 or 3.

The correct answer would be among B/C/E.

Statement (2)

If x is an integer, the only values of x for which 49/x is also an integer are the factors of 49: 1, 7, and 49. None of these values is between 10 and 20, so this statement is sufficient.

The correct answer is B.

This is insufficient. For example, x could be 1 or 3.

The correct answer would be among B/C/E.

Statement (2)

If x is an integer, the only values of x for which 49/x is also an integer are the factors of 49: 1, 7, and 49. None of these values is between 10 and 20, so this statement is sufficient.

The correct answer is B.