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.
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
Apr 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2212:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
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
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
05 Jul 2017, 00:40
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
73% (01:43) correct
27%
(01:35)
wrong
based on 297
sessions
History
Date
Time
Result
Not Attempted Yet
50 equally efficient people were employed to complete a work in 90 days. How long did it actually take to complete the work?
(1) After 30 days, the 50 people had completed only 25 percent of the work and worked at the same rate thereafter.
(2) Had 25 additional people, each having an efficiency equal to each of the initial 50 people, been employed after 30 days, the work would have been completed on time.
(1) After 30 days, the 50 people had completed only 25 percent of the work and worked at the same rate thereafter.
(2) Had 25 additional people, each having an efficiency equal to each of the initial 50 people, been employed after 30 days, the work would have been completed on time.
05 Jul 2017, 02:22
Kudos
Bookmarks
Bunuel
Hi...
Basically we require the working efficiency of each...
Let's see the statements..
I...
Straight answer in the statement..
50 of them complete 25% in 30 days..
So 50 of them will complete 25*4% in 30*4=120days..
Sufficient
II...
Working days.. 50*90+(25)(90-30)...
So for 50 of them, \(\frac{50*90+25*60}{50}=\frac{50*(90+30)}{50}=120\)
Suff
D
05 Jul 2017, 03:52
Kudos
Bookmarks
50 equally efficient people were employed to complete a work in 90 days. How long did it actually take to complete the work?
(1) After 30 days, the 50 people had completed only 25 percent of the work and worked at the same rate thereafter.
(2) Had 25 additional people, each having an efficiency equal to each of the initial 50 people, been employed after 30 days, the work would have been completed on time.
Solution:
Statement 1: This statement clearly says that the entire work will be completed by 120 days. Sufficient.
Statement 2: This statement says, 50 people worked for 30 days. And 75 people worked for 60 days to complete the work on time. So if 50 people had worked instead of 75,the work would have been completed after 120 days. Sufficient.
Therefore the answer is Option D.
(1) After 30 days, the 50 people had completed only 25 percent of the work and worked at the same rate thereafter.
(2) Had 25 additional people, each having an efficiency equal to each of the initial 50 people, been employed after 30 days, the work would have been completed on time.
Solution:
Statement 1: This statement clearly says that the entire work will be completed by 120 days. Sufficient.
Statement 2: This statement says, 50 people worked for 30 days. And 75 people worked for 60 days to complete the work on time. So if 50 people had worked instead of 75,the work would have been completed after 120 days. Sufficient.
Therefore the answer is Option D.
