Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - Data Sufficiency 1 (Q.No. 1)
Directions to Solve
Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and
- Give answer (A) if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
- Give answer (B) if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
- Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
- Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
- Give answer(E) if the data in both Statements I and II together are necessary to answer the question.
1.
A and B together can complete a task in 7 days. B alone can do it in 20 days. What part of the work was carried out by A? | |
I. | A completed the job alone after A and B worked together for 5 days. |
II. | Part of the work done by A could have been done by B and C together in 6 days. |
Answer: Option
Explanation:
B's 1 day's work = | 1 |
20 |
(A+ B)'s 1 day's work = | 1 |
7 |
I. (A + B)'s 5 day's work = | 5 |
7 |
Remaining work = | ![]() |
1 - | 5 | ![]() |
= | 2 | . |
7 | 7 |
![]() |
2 | work was carried by A. |
7 |
II. is irrelevant.
Correct answer is (A).
Discussion:
20 comments Page 2 of 2.
Bineeta said:
8 years ago
Why not E?
We required statement II also for solving the equation. Please explain me.
We required statement II also for solving the equation. Please explain me.
(1)
Manju p said:
8 years ago
How to find "x "when ((x÷15)+(5÷10))=1 is given.
Please tell me.
Please tell me.
VISITHRA. S said:
8 years ago
How "Remaining work =1-5" is done? Not understood please explain.
(1)
Munna said:
1 decade ago
How we get 5/7 and 1-5/7=2/7 how it is possible tell me friend?
Deepa said:
1 decade ago
Why we have calculated only for 5 days it may be 6 days too. ?
Akshay said:
9 years ago
@Ankush.
Agree with you, even I got the same answer.
Agree with you, even I got the same answer.
Singh said:
1 decade ago
Ankush you are genious yaar. You are 100% correct.
Pihu said:
9 years ago
@Ankush.
How you got 28? please explain.
How you got 28? please explain.
Lakshminarayana said:
10 years ago
Please explain deep I can't understand.
Nabanita Biswas said:
8 years ago
From where we get 5?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers