Rounding

Question 1

If n is an integer between 100 and 900, what is the tens digit of n?

(1) If n is rounded to the nearest ten and the result is then rounded to the nearest hundred, the final value differs from the result of rounding n to the nearest hundred.
(2) The tens digit of n is half the units digit of n and is twice the hundreds digit of n.

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 one ALONE is sufficient.

EACH statement ALONE is sufficient.

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

Answer 1

Ans A

I could not get this problem but what I could ahve done is that by statement 2 I was only getting 2 values so I should ahve tried statement 1 on those 2 values -> maybe that would ahve helped me