gmat1220 wrote:
1) not sufficient. Unless the questions says how many total consecutive integers are 1) is NOT sufficient.
2) is sufficient. lets say numbers are n, n+2
2n + 2 = 22
n = 10
so first two numbers are 10,12. Hence we can find the fourth consecutive even. Sufficient.
Unless the questions says how many total consecutive integers are 1) is NOT sufficient. hence B
That's exactly what I thought! i answered B too... but the q says that I'm wrong.
This is the OE.
"From Statement 1, we get the sum of last two of the four consecutive even numbers are 30. (
This is an assumption that the only amount of numbers there are is four... That is not stated in the q.)If x be the last number, the second last number would be x - 2 as the numbers are even and consecutive.
Now, x + x - 2 = 30
or x = 16
Now, if 16 is the last number in the series of even consecutive numbers, the others are 14, 12, and 10.
Thus statement 1 alone is sufficient to answer the question.
Statement 2 gives the sum of the first two numbers as 22.
If x and x + 2 are the first two numbers,
x + x + 2 = 22
and x = 10.
The other numbers in the series are 12, 14 and 16. Thus the question can also be answered using statement 2 alone.
Therefore, both the statements are individually able to answer the question,
Hence (D) is the correct answer."
_________________
Thank you for your kudoses Everyone!!!
"It always seems impossible until its done."
-Nelson Mandela