Last visit was: 18 Nov 2025, 22:41 It is currently 18 Nov 2025, 22:41
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
Bismuth83
User avatar
DI Forum Moderator
Joined: 15 Sep 2024
Last visit: 01 Aug 2025
Posts: 719
Own Kudos:
2,605
 [8]
Given Kudos: 441
Expert
Expert reply
Posts: 719
Kudos: 2,605
 [8]
3
Kudos
Add Kudos
5
Bookmarks
Bookmark this Post
User avatar
Vi06
Joined: 23 Sep 2024
Last visit: 15 Nov 2025
Posts: 12
Own Kudos:
Given Kudos: 27
Posts: 12
Kudos: 22
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Bismuth83
User avatar
DI Forum Moderator
Joined: 15 Sep 2024
Last visit: 01 Aug 2025
Posts: 719
Own Kudos:
2,605
 [2]
Given Kudos: 441
Expert
Expert reply
Posts: 719
Kudos: 2,605
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Nico34512
Joined: 08 Jan 2025
Last visit: 14 Jan 2025
Posts: 1
Given Kudos: 2
Posts: 1
Kudos: 0
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bismuth83
Your solution is correct. However, how do you suppose that 180*3= 540 people live in exactly 135*3= 405 units? The text cite only that the population is equal to the minimum. It doesn't specify nothing for the units.
Thx in advance
User avatar
Bismuth83
User avatar
DI Forum Moderator
Joined: 15 Sep 2024
Last visit: 01 Aug 2025
Posts: 719
Own Kudos:
Given Kudos: 441
Expert
Expert reply
Posts: 719
Kudos: 2,605
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Good point! If the minimum requirement is met exactly by units, then everything works. However, if the requirement is met by having 180 residents, it doesn't mean that exactly 135 units are used.

What I can say is that we're approximating this information, since the question doesn't ask for an exact answer: "The total charges ... is closest to." In other words, for every 180 residents, 135 units are used.

I hope that helped!
Nico34512
Bismuth83
Your solution is correct. However, how do you suppose that 180*3= 540 people live in exactly 135*3= 405 units? The text cite only that the population is equal to the minimum. It doesn't specify nothing for the units.
Thx in advance
User avatar
sommertag0321
Joined: 28 Feb 2025
Last visit: 06 Apr 2025
Posts: 2
Posts: 2
Kudos: 0
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Regarding the question sentence "The total charges for providing annual heating and cooling checkups for all units in each of the three apartment complexes is closest to", doesn't it mean the charges for each of the apartment (45*135)? Why does it mean the charges for all three apartments (45*135*3)?
User avatar
CapedCrusader09
Joined: 07 Sep 2024
Last visit: 18 Nov 2025
Posts: 8
Own Kudos:
Given Kudos: 236
Products:
Posts: 8
Kudos: 3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Exactly my query. "EACH" kinda negates the multiplier of 3.
sommertag0321
Regarding the question sentence "The total charges for providing annual heating and cooling checkups for all units in each of the three apartment complexes is closest to", doesn't it mean the charges for each of the apartment (45*135)? Why does it mean the charges for all three apartments (45*135*3)?
Moderators:
Math Expert
105356 posts
496 posts