Data Sufficiency - Reasoning Questions and Answers with solutions or explanation for interview, entrance tests and competitive exams. Practice online quiz, fully solved examples with detailed answers.
1. What is Reena's rank in the class ?
I. There are 26 students in the class.
II. There are 9 students who have scored less then Reena.
- A. if the data in statement I alone are sufficient to answer the question;
- B. if the data in statement II alone are sufficient to answer the question;
- C. if the data either in I or II alone are sufficient to answer the question;
- D. if the data even in both the statement together are not sufficient to answer the question;
- E. if the data in both the statements together are needed.
Answer: Option E
Explanation:
From I and II, we conclude that there are 16 students above Reena in rank. Thus, Reena's rank is 17th in the class. So, both the statements are necessary.
2. Who is the father of M?
I. A and B are brothers.
II. B's wife is sister of M's wife.
- A. if the data in statement I alone are sufficient to answer the question;
- B. if the data in statement II alone are sufficient to answer the question;
- C. if the data either in I or II alone are sufficient to answer the question;
- D. if the data even in both the statement together are not sufficient to answer the question;
- E. if the data in both the statements together are needed.
Answer: Option D
Explanation:
From II, we conclude that B is the brother-in-law of M. So, even from both the statements, we can't find out who is the father of M.
3. What day is the fourteenth of a given month ?
I. The last day of the month is a Wednesday.
II. The third Saturday of the month was seventeenth.
- A. if the data in statement I alone are sufficient to answer the question;
- B. if the data in statement II alone are sufficient to answer the question;
- C. if the data either in I or II alone are sufficient to answer the question;
- D. if the data even in both the statement together are not sufficient to answer the question;
- E. if the data in both the statements together are needed.
Answer: Option B
Explanation:
Statement II reveals that 17th was a Saturday and therefore, 14th was Wednesday. So, only statement II is needed.
4. Among four friends A, B, C and D, who is the heaviest ?
I. B is heavier than A, but lighter than D.
II. C is lighter than B.
- A. if the data in statement I alone are sufficient to answer the question;
- B. if the data in statement II alone are sufficient answer the question;
- C. if the data either in I or II alone are sufficient to answer the question;
- D. if the data even in both the statements together are not sufficient to answer the question;
- E. if the data in both the statements together are needed.
Answer: Option E
Explanation:
From I, we have A < B < D.
From II, we have C < B.
Combining (i) and (ii), we can conclude that D is the heaviest. So, both the statements are needed
5. It is 8.00 p.m., when can Hemant get next bus for Ramnagar from Dhanpur?
I. Buses for Ramnagar leave after every 30 minutes, till 10 p.m.
II. Fifteen minutes ago, one bus has left for Ramnagar.
- A. if the data in statement I alone are sufficient to answer the question;
- B. if the data in statement II alone are sufficient answer the question;
- C. if the data either in I or II alone are sufficient to answer the question;
- D. if the data even in both the statements together are not sufficient to answer the question;
- E. if the data in both the statements together are needed.
Answer: Option E
Explanation:
II reveals that the previous bus had left 7.45 p.m. As given in I, the next bus would leave after 30 minutes i.e. at 8.15 p.m.
