Last visit was: 18 May 2024, 22:38 It is currently 18 May 2024, 22:38
Toolkit
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.
Request Expert Reply

# If it takes three days for 10 workers to finish building one house, ho

SORT BY:
Tags:
Show Tags
Hide Tags
Math Expert
Joined: 02 Sep 2009
Posts: 93334
Own Kudos [?]: 624844 [8]
Given Kudos: 81900
GMAT Club Legend
Joined: 18 Aug 2017
Status:You learn more from failure than from success.
Posts: 8024
Own Kudos [?]: 4124 [0]
Given Kudos: 242
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1:
545 Q79 V79 DI73
GPA: 4
WE:Marketing (Energy and Utilities)
Intern
Joined: 26 Oct 2018
Posts: 3
Own Kudos [?]: 0 [0]
Given Kudos: 4
GMAT Club Legend
Joined: 18 Aug 2017
Status:You learn more from failure than from success.
Posts: 8024
Own Kudos [?]: 4124 [0]
Given Kudos: 242
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1:
545 Q79 V79 DI73
GPA: 4
WE:Marketing (Energy and Utilities)
Re: If it takes three days for 10 workers to finish building one house, ho [#permalink]
Lobna12 wrote:
I reached a different solution.

If one house takes 3 workers to finish in 10 days. Then 1 worker would finish the same job in 30 days.

Then for one worker to complete four houses he needs 30*4=120 days. Then 15 workers can do it in 120/15=8 days. Ans C

Yes I made an error, calculating rate per worker..

Posted from my mobile device
Non-Human User
Joined: 09 Sep 2013
Posts: 33077
Own Kudos [?]: 828 [0]
Given Kudos: 0
Re: If it takes three days for 10 workers to finish building one house, ho [#permalink]
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.
Re: If it takes three days for 10 workers to finish building one house, ho [#permalink]
Moderators:
Math Expert
93334 posts
Senior Moderator - Masters Forum
3137 posts