Civil Engineering Mechanical Engineering Chemical Engineering Networking Database Questions Computer Science Basic Electronics Digital Electronics Electronic Devices Circuit Simulation Electrical Enigneering Engineering Mechanics Technical Drawing

# Aptitude - Time and Work - Discussion

@ : Home > Aptitude > Time and Work > Data Sufficiency 3 - Discussion

"To err is human; to forgive, divine."
- Alexander Pope

Each of these questions is followed by three statements. You have to study the question and all the three statements given to decide whether any information provided in the statement(s) is redundant and can be dispensed with while answering the given question.

1.

 8 men and 14 women are working together in a field. After working for 3 days, 5 men and 8 women leave the work. How many more days will be required to complete the work? I. 19 men and 12 women together can complete the work in 18 days. II. 16 men can complete two-third of the work in 16 days. III. In 1 day, the work done by three men in equal to the work done by four women.

 [A]. I only [B]. II only [C]. III only [D]. I or II or III [E]. II or III only

Explanation:

Clearly, I only gives the answer.

Similarly, II only gives the answer.

And, III only gives the answer.

 Sat said: (Wed, Jul 14, 2010 07:39:17 AM) UNBLE TO UNDERSTAND..... PLEASE EXPLAIN IT

 Ankush said: (Tue, Jul 20, 2010 03:38:12 AM) Please explain. . . how clearly,I gives the answer ? ? ?

 Newbie said: (Tue, Nov 9, 2010 07:27:29 AM) Any explanations to this? I am also unable to understand. I felt I & II can give the answer.

 Balaji said: (Sun, Nov 28, 2010 01:14:15 AM) From II we can find the no of days required by a eight men to complete i.e if 16 is for 24 then 8 is for 12 days. from option III we can find the relation between the men and woman working days tat is 3:4 , 4/3*12=16 days for 8 women, then for 14 women it is 28 days .. it is clear that option II and III are mandatory to give the answer. then how is option D right??

 Shekhar said: (Mon, Jun 13, 2011 08:22:45 AM) See the question is which option is redundant right... that means which one of I,II or III can be left Since pairwise I,II II,III and III,I can give u answer so any of these statements I,II or III can be redundant.. That's y option d) is correct

 Pes11 said: (Mon, Jul 4, 2011 07:29:44 AM) The answer says "Clearly, I only gives the answer". How is this possible? from I you only get the equation 19m+12w=1/18 With this eq and with the data given in the problem statement, how can you get an answer for this question?

 Uttar Dewangan said: (Fri, Aug 19, 2011 11:07:48 AM) Please explain this question any with diagram.

 Ajaydeep said: (Wed, Mar 7, 2012 01:14:16 PM) Was not able to understand...Please give the solution...

 Vipul said: (Mon, Aug 20, 2012 09:50:27 PM) The equations formed contain two unknown variables so any two options are required to find the no. of days.. The options are incorrect

 Sandy said: (Tue, Apr 2, 2013 01:29:46 AM) Those who don't bother about paying attention to terms and conditions for usage of a product. Understanding this equation is nearly impossible for them.

 Karthik said: (Wed, May 1, 2013 12:44:12 PM) Suppose x be the work done by 1 man in 1 day. Similarly let y be the work done by 1 woman in 1 day. So according to the problem , the eq is : 3(8x+14y)+d(3x+6y)=1. where d is the no of additional days required to finish the work. Now we have 3 unknowns:x, y, d. Statement 1 gives us the eq: 18(19x+12y)=1. Statement 2 gives us the eq: 16*x*16=1. Statement 3 gives us the eq: 3x=4y. Thus to solve the problem statements 3 and 1 or 3 and 2 are required. But no such option is there in the question.