We invite you to test your GMAT knowledge for a chance to win! Each week, we will post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
For positive integers n, the integer part of the nth term of sequence A equals n, while the infinite decimal part of the nth term is constructed in order out of the consecutive positive multiples of n, beginning with 2n. For instance, A1 = 1.2345678…, while A2 = 2.4681012… The sum of the first seven terms of sequence A is between
To see the answer choices, and to submit your answer, visit our Challenge Problem Showdown page on our site.
Discuss this week’s problem with like-minded GMAT takers on our Facebook page.