Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Nov 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 23
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Nov 2510:00 AM EST
-11:00 AM EST
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors.
04 Jun 2020, 06:45
Kudos
Bookmarks
A team of twenty four workers was on a job that could be finished in 70 days. Ten more workers were hired on the first day and 8 more on the 36th day. How many days earlier would be the job be completed?
Posted from my mobile device
Posted from my mobile device
04 Jun 2020, 09:05
Kudos
Bookmarks
rarengr
Given: A team of twenty four workers was on a job that could be finished in 70 days. Ten more workers were hired on the first day and 8 more on the 36th day.
Asked: How many days earlier would be the job be completed?
Work required = 24*70 = 1680 man-days
Let us assume that work was finished x days earlier than schedule time of 70 days
34*35 + 42*(70-35-x) = 24*70 = 1680
34*35 + 42(35-x) = 24*70= 1680
35-x = 14*35/42 = 490/42 = 11 28/42 = 11 2/3 days
x = 35 - 11 2/3 days = 23 1/3 days earlier
It is assumed that once man-power is hired it continued to work for days ahead.
