Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

52% (02:17) correct
48% (01:45) wrong based on 93 sessions

HideShow timer Statistics

In a certain marching band formation, each row of band members has the same number of members, and the number of rows is 1 less than the number of members in a row. How many band members are there in each row?

(1) There is a total of 90 band members. (2) If each of the members of the last row were assigned to a different row, the row with the least number of members would have 10 members.

Re: In a certain marching band formation [#permalink]

Show Tags

30 Jun 2013, 12:05

It is basically a formation that has 1 row less than the number of members ---> number of rows + 1 = number of members in a row

1) There are 90 members overall - x * (x + 1) = 90 - simply plug in numbers 9 and 10 and voila it is sufficient since there are no alternate solutions. We now know the exact number of rows and members in a row. Alternatively, you could simply use the formula x^2 + x - 90 = 0 and find the solution there. Sufficient

2) A little tricky wording because it almost seems that there could be only one row with the least number of members (in this case 10). But depending on the number of members there could be more rows with 10 members while other rows have more than 10 (i.e. 11). Not sufficient

Re: In a certain marching band formation [#permalink]

Show Tags

20 Aug 2013, 21:56

Baracuda123 wrote:

It is basically a formation that has 1 row less than the number of members ---> number of rows + 1 = number of members in a row

1) There are 90 members overall - x * (x + 1) = 90 - simply plug in numbers 9 and 10 and voila it is sufficient since there are no alternate solutions. We now know the exact number of rows and members in a row. Alternatively, you could simply use the formula x^2 + x - 90 = 0 and find the solution there. Sufficient

2) A little tricky wording because it almost seems that there could be only one row with the least number of members (in this case 10). But depending on the number of members there could be more rows with 10 members while other rows have more than 10 (i.e. 11). Not sufficient

Answer A

To me it seems something is wrong with statement 2 , if all rows are supposed to have the same number of members how can there be a least row and most row? Something seems odd about statement 2
_________________

Re: In a certain marching band formation [#permalink]

Show Tags

21 Aug 2013, 02:28

I thought the answer was D. Because i took the last row members and distributed den equally to each row. Which makes the no. of rows (n-2) and row with the least no. will now have (n+1) and two rows will have (n+2) But they never said they were equally divided. Alas
_________________

Re: In a certain marching band formation [#permalink]

Show Tags

03 Mar 2016, 09:33

there is something wrong with statement 2... As.suppose there are 8 rows and each has 9 members if we distribute the last row then every other row will have 10 members with 1 member still left.... I think statement is not correct. if we distribute trhe last remaning member then all rows will have 10 members(least in this case) except one,which will have 11 members.
_________________

"Follow your heart and realize that your dream is a dream for a reason" -Dori Roberts

In a certain marching band formation, each row of band members has the same number of members, and the number of rows is 1 less than the number of members in a row. How many band members are there in each row?

(1) There is a total of 90 band members. (2) If each of the members of the last row were assigned to a different row, the row with the least number of members would have 10 members.

Yes, the question is incorrect. Stmnt 1 tells you that there are 9 rows and 10 members in each row. Stmnt 2 contradicts the information given in the question stem - number of rows is one less than number of members in each row. If this is true, you cannot distribute more members in fewer rows such that each member is assigned to a different row.

In a certain marching band formation, each row of band members has the same number of members, and the number of rows is 1 less than the number of members in a row. How many band members are there in each row?

(1) There is a total of 90 band members. (2) If each of the members of the last row were assigned to a different row, the row with the least number of members would have 10 members.

Yes, the question is incorrect. Stmnt 1 tells you that there are 9 rows and 10 members in each row. Stmnt 2 contradicts the information given in the question stem - number of rows is one less than number of members in each row. If this is true, you cannot distribute more members in fewer rows such that each member is assigned to a different row.

Hey, guys, So, I’ve decided to run a contest in hopes of getting the word about the site out to as many applicants as possible this application season...

Whether you’re an entrepreneur, aspiring business leader, or you just think that you may want to learn more about business, the thought of getting your Masters in Business Administration...

Whether you’re an entrepreneur, aspiring business leader, or you just think that you may want to learn more about business, the thought of getting your Masters in Business Administration...