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.
Jun 0308:30 AM PDT
-09:30 AM PDT
In Episode 7 of our GMAT Ninja CR series, we are rounding up the oddballs, the misfits, and the format-benders: EXCEPT, Fill-In-The-Blanks, and other unusual Critical Reasoning question types. When you see a question that ends with a literal blank line
May 2910:00 AM IST
-11:00 PM IST
Start your journey with a fully customized action plan and work with a dedicated mentor to achieve a 735+ score.- Jun 02
10:00 AM PDT
-11:00 AM PDT
Probability is one of the most important GMAT Quant topics because it often combines logic, counting, set theory, and permutations & combinations. Many students try to solve probability questions by listing every possible case, but GMAT probability... - Jun 04
08:30 AM PDT
-09:30 AM PDT
For most test takers, Data Insights is the most challenging section on the GMAT, with test takers scoring several points lower on average on DI than on Quant or Verbal and completing the section with less time to spare. - Jun 10
06:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
23 Oct 2010, 09:42
Kudos
Bookmarks
N
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
(N/A)
Question Stats:
80% (01:03) correct
20%
(03:12)
wrong
based on 9
sessions
History
Date
Time
Result
Not Attempted Yet
Hi,
I was hoping to get the correct approach for the following types of basic problems in Time & Work.
Type I - Extra number of men required/employed
1) An engineer undertakes a project to build a road 15 km long in 300 days with 45 men employed. After 100 days, only 2.5 km of the road has been completed. Find the (approx.) number of extra men needed to complete the work in time.
a) 43
b) 45
c) 55
d) 68
e) 60
OA -
Type II - when amount paid is included
1) A can do a piece of work in 12 days. A and B complete the work together and were paid Rs. 54 and Rs. 81 respectively. How many days must they have taken to complete the work together?
a) 4 days
b) 4.5 days
c) 4.8 days
d) 5 days
e) 4.2 days
OA -
Type 3 - men leave halfway through work
1) In a fort, there was sufficient food for 200 soldiers for 31 days. After 27 days 120 soldiers left the fort. For how many extra days will the rest of the food last for the remaining soldiers?
a) 12 days
b) 10 days
c) 8 days
d) 6 days
OA -
Any pointers would be helpful.
I was hoping to get the correct approach for the following types of basic problems in Time & Work.
Type I - Extra number of men required/employed
1) An engineer undertakes a project to build a road 15 km long in 300 days with 45 men employed. After 100 days, only 2.5 km of the road has been completed. Find the (approx.) number of extra men needed to complete the work in time.
a) 43
b) 45
c) 55
d) 68
e) 60
OA -
Type II - when amount paid is included
1) A can do a piece of work in 12 days. A and B complete the work together and were paid Rs. 54 and Rs. 81 respectively. How many days must they have taken to complete the work together?
a) 4 days
b) 4.5 days
c) 4.8 days
d) 5 days
e) 4.2 days
OA -
Type 3 - men leave halfway through work
1) In a fort, there was sufficient food for 200 soldiers for 31 days. After 27 days 120 soldiers left the fort. For how many extra days will the rest of the food last for the remaining soldiers?
a) 12 days
b) 10 days
c) 8 days
d) 6 days
OA -
Any pointers would be helpful.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
Updated on: 23 Oct 2010, 17:57
Originally posted by ezhilkumarank on 23 Oct 2010, 17:44.
Last edited by ezhilkumarank on 23 Oct 2010, 17:57, edited 1 time in total.
Last edited by ezhilkumarank on 23 Oct 2010, 17:57, edited 1 time in total.
Kudos
Bookmarks
Type 3 - men leave halfway through work
1) In a fort, there was sufficient food for 200 soldiers for 31 days. After 27 days 120 soldiers left the fort. For how many extra days will the rest of the food last for the remaining soldiers?
a) 12 days
b) 10 days
c) 8 days
d) 6 days
[/quote]
Hence the number of days the remaining quantity will last = 10 days. However the original quantity was to last for only 4 more days if none of the soldiers had left.
Hence extra days is 10-4 = 6 days (D).
1) In a fort, there was sufficient food for 200 soldiers for 31 days. After 27 days 120 soldiers left the fort. For how many extra days will the rest of the food last for the remaining soldiers?
a) 12 days
b) 10 days
c) 8 days
d) 6 days
| Food Availability | |||
| Men | Days | Quantity | |
| Given | 200 | 31 | 6200 |
| Till 27 days | 200 | 27 | 5400 |
| From 28th day | 80 | x | 800 |
Hence the number of days the remaining quantity will last = 10 days. However the original quantity was to last for only 4 more days if none of the soldiers had left.
Hence extra days is 10-4 = 6 days (D).
23 Oct 2010, 17:56
Kudos
Bookmarks
Type II - when amount paid is included
1) A can do a piece of work in 12 days. A and B complete the work together and were paid Rs. 54 and Rs. 81 respectively. How many days must they have taken to complete the work together?
a) 4 days
b) 4.5 days
c) 4.8 days
d) 5 days
e) 4.2 days
Given A can do the work in 12 days. Hence A's rate is 1/12.
Also amount payment made to A and B is Rs 54 and Rs 81 respectively -- which is the ratio of 2:3.
Viewing only A's data: Since payment is proportional to the amount of work done.
Fraction of the total work done by A * Days in which A would have completed the work alone.
Hence (2/5) * 12 = 4.8 days. Hence A worked for 4.8 days @ a rate of (1/12) along with B to complete the work.
Answer C (4.8).
1) A can do a piece of work in 12 days. A and B complete the work together and were paid Rs. 54 and Rs. 81 respectively. How many days must they have taken to complete the work together?
a) 4 days
b) 4.5 days
c) 4.8 days
d) 5 days
e) 4.2 days
Given A can do the work in 12 days. Hence A's rate is 1/12.
Also amount payment made to A and B is Rs 54 and Rs 81 respectively -- which is the ratio of 2:3.
Viewing only A's data: Since payment is proportional to the amount of work done.
Fraction of the total work done by A * Days in which A would have completed the work alone.
Hence (2/5) * 12 = 4.8 days. Hence A worked for 4.8 days @ a rate of (1/12) along with B to complete the work.
Answer C (4.8).
