Last visit was: 11 Jul 2025, 02:23 It is currently 11 Jul 2025, 02:23
Close
GMAT Club Daily Prep
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.
Close
Request Expert Reply
Confirm Cancel
User avatar
wshaffer
Joined: 12 Jul 2006
Last visit: 24 Oct 2008
Posts: 84
Own Kudos:
256
 [11]
Posts: 84
Kudos: 256
 [11]
2
Kudos
Add Kudos
9
Bookmarks
Bookmark this Post
User avatar
Nsentra
Joined: 31 Jul 2006
Last visit: 23 May 2008
Posts: 370
Own Kudos:
Posts: 370
Kudos: 319
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
diegmat
Joined: 14 Sep 2006
Last visit: 16 Apr 2012
Posts: 152
Own Kudos:
Schools:Olin Business School - Washington University
Posts: 152
Kudos: 59
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
fozzzy
Joined: 29 Nov 2012
Last visit: 17 May 2015
Posts: 574
Own Kudos:
Given Kudos: 543
Posts: 574
Kudos: 6,626
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Is this question as simple as it seems to be or am I missing something?
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 11 July 2025
Posts: 102,634
Own Kudos:
740,295
 [4]
Given Kudos: 98,170
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,634
Kudos: 740,295
 [4]
3
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
fozzzy
Is this question as simple as it seems to be or am I missing something?

It's pretty simple, yes.

Each of the offices in a certain building has a floor area of 200, 300, or 350 square feet. How many offices are on the first floor of the building?

(1) There is a total of 9,500 square feet of office space on the first floor of the building. There are many ways to break 9,500 into the sum of 200's, 300's and 350's. Not sufficient.

(2) Ten of the offices on the first floor have floor areas of 350 square feet each. This just tells that there are more than (or equal to) 10 offices on the first floor. Not sufficient.

(1)+(2) 9,500 - 350*10 = 6,000 square feet on the first floor is occupied by 200 or 300 square feet offices. The same here: there are many ways to break 6,000 into the sum of 200's and 300's. Not sufficient.

Answer: E.
User avatar
jlgdr
Joined: 06 Sep 2013
Last visit: 24 Jul 2015
Posts: 1,316
Own Kudos:
Given Kudos: 355
Concentration: Finance
Posts: 1,316
Kudos: 2,718
Kudos
Add Kudos
Bookmarks
Bookmark this Post
wshaffer
Each of the offices in a certain building has a floor area of 200, 300, or 350 square feet. How many offices are on the first floor of the building?"

(1) There is a total of 9,500 square feet of office space on the first floor of the building

(2) Ten of the offices on the first floor have floor areas of 350 square feet each.

Let's take Statement 2 for instance, when they say stuff like 'Ten of the offices on the first floor have 350 sq feet'
We can assume that they are only describing those 10 and that by no means they are saying that the ONLY ones that have 350 are those ten right?

Cheers
J :)
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 11 July 2025
Posts: 102,634
Own Kudos:
Given Kudos: 98,170
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,634
Kudos: 740,295
Kudos
Add Kudos
Bookmarks
Bookmark this Post
jlgdr
wshaffer
Each of the offices in a certain building has a floor area of 200, 300, or 350 square feet. How many offices are on the first floor of the building?"

(1) There is a total of 9,500 square feet of office space on the first floor of the building

(2) Ten of the offices on the first floor have floor areas of 350 square feet each.

Let's take Statement 2 for instance, when they say stuff like 'Ten of the offices on the first floor have 350 sq feet'
We can assume that they are only describing those 10 and that by no means they are saying that the ONLY ones that have 350 are those ten right?

Cheers
J :)

Yes, the second statement means that there are exactly ten offices with floor areas of 350 square feet.
User avatar
Hoozan
Joined: 28 Sep 2018
Last visit: 27 Jun 2025
Posts: 689
Own Kudos:
Given Kudos: 248
GMAT 1: 660 Q48 V33 (Online)
GMAT 2: 700 Q49 V37
Products:
GMAT 2: 700 Q49 V37
Posts: 689
Kudos: 667
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel EducationAisle I notice that 9500 doesn't completely divide by 200, 300, and 350. So we know that there will be AT LEAST a combination of 2 or 3 of the above sq. feet. to cover the total area of 9500. But how can one come up with 2 - 3 instances (without spending too much time) to see that (1) is insuff.

What I thought was that 300 * 30 gives 9000. If I take one more 300 sq feet I'll get 9300. So 31(300 sq. feet) covers a total of 9300. We are left with 200 sq. feet. So 1(200 sq. feet) can be used to cover the remaining. Hence 1(200) + 31(300) = 9500. So here we have one instance.

Now if I look at 200 sq. feet. 4 * 2 = 8. So if I take 40 (200 sq. feet) I'll get 8000 sq. feet. The remaining 1500 sq. feet can be covered by 5 (300 sq. feet). So 40 (200 sq. feet) + 5 (300 sq. feet.) = 9500 sq. feet. Here we get another instance. Hence (1) is insuff.

BUT, this can take over 30-40 sec. Could you provide a more structured method of approaching this question. As you can see, I just took some random (smart) numbers and saw what is and isn't divisible by 9500.
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 37,376
Own Kudos:
Posts: 37,376
Kudos: 1,010
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Moderator:
Math Expert
102634 posts