Can You Answer This GMAT Practice Question?
Monday April 28, 2008
Great news if you are preparing for the GMAT (or if you just want to challenge yourself for fun):
Integrated Learning, a company that provides private GMAT tutoring, has agreed to provide a weekly GMAT challenge through my blog.
A new question will be posted here each week on Monday. An answer to the question and a full explanation will be posted the following day so you can see whether or not you were able to answer the question correctly. The weekly challenges will be great practice for anyone preparing for the GMAT and for people who just want to entertain their brain.
Without further ado, here is the first GMAT question:
GMAT Practice Question 1:
What is the remainder when x is divided by 18?
1)The remainder when x is divided by 9 is 7.
2)x is even.
A.) Statement (1) ALONE is sufficient, but statement (2) is not sufficient.
B.) Statement (2) ALONE is sufficient, but statement (1) is not sufficient.
C.) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D.) EACH statement ALONE is sufficient.
E.) Statements (1) and (2) TOGETHER are NOT sufficient.
So, what do you think? Is the answer A, B, C, D or E? You can post you guess in the comments (see below) or discuss the question in the Business School Community Forum.
Don't forget to check back tomorrow for the answer!
To see more GMAT challenges, visit the Integrated Learning Blog.
Integrated Learning, a company that provides private GMAT tutoring, has agreed to provide a weekly GMAT challenge through my blog.
A new question will be posted here each week on Monday. An answer to the question and a full explanation will be posted the following day so you can see whether or not you were able to answer the question correctly. The weekly challenges will be great practice for anyone preparing for the GMAT and for people who just want to entertain their brain.
Without further ado, here is the first GMAT question:
GMAT Practice Question 1:
What is the remainder when x is divided by 18?
1)The remainder when x is divided by 9 is 7.
2)x is even.
A.) Statement (1) ALONE is sufficient, but statement (2) is not sufficient.
B.) Statement (2) ALONE is sufficient, but statement (1) is not sufficient.
C.) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D.) EACH statement ALONE is sufficient.
E.) Statements (1) and (2) TOGETHER are NOT sufficient.
So, what do you think? Is the answer A, B, C, D or E? You can post you guess in the comments (see below) or discuss the question in the Business School Community Forum.
Don't forget to check back tomorrow for the answer!
To see more GMAT challenges, visit the Integrated Learning Blog.
Comments
Obviously, has to be E because Statement 2 contradicts statement 1 (9×7=63 not even)then i can only conclude that E would be the only logical answer
Well, no, I don’t think it has to be E. You can rule out A, B, and D by doing a few quick calculations, and you’re left with C and E. Then you just need to test a few more possibilities (divide 25, 50, etc by 9 and 18) to try and disprove C. If you can’t disprove it, it’s likely right (but no promises).
The answer is (C). The remainder in conditions 1 and 2 is 16.
Condition 1 tells you that x is non-negative and x=9*n+7 where n = 0, 1, 2, etc…
Condition 2 limits n to odd numbers (n = 1, 3, 5, etc…) such that x is an even number.
Do the math, if n is odd, the remainder is 7, if n is even, the remainder is 16.
You need both conditions 1 and 2 to determine the remainder, no more and no less.
Yes, C is the correct answer. Statement 1 tells you that x mod 18 is either 7 or 16, depending on whether x is odd or even. Statement 2 tells you x is even. Therefore, Statements 1 and 2 together tell you that the remainder is 16.
E is the correct answer.
It is B. x=88. But you only need to know statement B to figure it out:
9*9=81+7=88. 88/9=9r7
Don’t over think this one.
i think it iz C
hey u no dat i am only 11
but smart!
lolzz
The answer is E. Think about it –>
Statement one says that when x is divided by 9, the remainder is 7. X could be 28 and when divided by 18, the remainder is 10. However, X could be 52 and the remainder after dividing by 18 is 16. We do not get a standard answer only through statement one.
Statement two states that x is even. This statement by itself is insufficient. Take a look at the examples above.
Therefore, the answer is E.
Answer is C.
You need both to figure out the remainder.
My oppenion is that the correct answer is -A- as I can see Statement (1) is sufficient as: 9*7=63 and 63/9=7; statement (2) is not sufficient as 63 is not an even number……..See how smart girl am I)))WILL YOU PLEASE ACCEPTT ME TO HARVARD BUSINESS SCHOOL