Aptitude - Time and Work - Discussion

Discussion Forum : Time and Work - Data Sufficiency 3 (Q.No. 1)
Directions to Solve

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.

I only
II only
III only
I or II or III
II or III only
Answer: Option
Explanation:

Clearly, I only gives the answer.

Similarly, II only gives the answer.

And, III only gives the answer.

Correct answer is (D).

Discussion:
44 comments Page 1 of 5.

Goutam Popli said:   2 years ago
I think, the question is not specific because only statement 1 gives us the work done by 19M and 12 W but not 8M and 12W and similarly statement 2 only gives us an idea about the efficiency of Man but together statements 2 and 3 gives us an idea about work to be done and efficiency of man and women.
(8)

Noobie said:   2 years ago
I think C "III only" is correct since it gives the ratio of M/W which can be used to solve the original equation from the question. Alone II doesn't give any info on woman's work.

And alone the statement I just give another equation in two variables which doesn't help at all.
(6)

Preeti said:   8 years ago
Read the main question carefully and you will get that we have to find the option which is not essential to solve the question.

So by any two options, we can give the answer, the third is not necessary.

That's why the answer is I, II, III. So we can remove any one of three.
(4)

Prashant Kumar Sharma said:   4 years ago
I think option E is right.
(3)

Riya said:   4 years ago
Clearly, you are right, thanks @Tom!
(2)

Victor Fernandes said:   10 years ago
According to me either (I) or (III) is redundant as both involve 2 variables. (II) involves just one variable and can be used to get the second variable in (I) or (III).

However there is no such option of (I) or (III) could you please correct this in the question?

Please feel free to reply here if any of this does not make sense or if you find me to be wrong. I'd like to learn.
(2)

Prince Raj said:   10 months ago
options are wrong , you cannot find the answer without the help of all three statements.
If you analyse the question thoroughly , you will find that , all the three statements are reqd to solve this problem and the answer is , 43.4 days will took to complete the remaining work if 3 men and 6 womens work together .
(1)

GAURAV said:   6 years ago
I think option II can't give answer because that doesn't mentioned about women work.
(1)

Rahul. M said:   7 years ago
I think option A is correct because in other two option they have not mentioned the total day required to complete whole work.
(1)

Shanu said:   10 years ago
Correct read the question carefully, they're asking the redundant statement and not the required statements.
(1)


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