AbeNeedsAnswers wrote:f i and j are integers, is i + j an even integer?
(1) i < 10
(2) i = j
We need to determine whether i + j is an even integer. Remember:
even + even = even
odd + odd = even
Thus, if we can determine that i and j are either both even or both odd, we will be able to answer the question.
Statement One Alone:
i < 10
Knowing that i is less than 10 is not enough to determine whether i + j is an even integer. Statement one alone is not sufficient to answer the question.
Statement Two Alone:
i = j
Since we know i = j, we know that i and j are both even or both odd. Following our addition rules for even and odd numbers, we see that i + j must be even.
Statement two alone is sufficient to answer the question.
Answer: B
