Verbal Reasoning - Data Sufficiency

Exercise :: Data Sufficiency - Section 2

In each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the 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
  • (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
  • (C) If the data either in statement I alone or in statement II alone are sufficient to answer the question
  • (D) If the data given in both statements I and II together are not sufficient to answer the question and
  • (E) If the data in both statements I and II together are necessary to answer the question.

11. 

Question: What time did the train leave today ?

Statements:

  1. The train normally leaves on time.
  2. The scheduled departure is at 14 : 30.

A. I alone is sufficient while II alone is not sufficient
B. II alone is sufficient while I alone is not sufficient
C. Either I or II is sufficient
D. Neither I nor II is sufficient
E. Both I and II are sufficient

Answer: Option D

Explanation:

Clearly, even both I and II together do not reveal the exact time of departure of the train today.


12. 

Question: What does '$' mean in a code language?

Statements:

  1. '5$#3' means 'flowers are really good'.
  2. '7#35' means 'good flowers are available'.

A. I alone is sufficient while II alone is not sufficient
B. II alone is sufficient while I alone is not sufficient
C. Either I or II is sufficient
D. Neither I nor II is sufficient
E. Both I and II are sufficient

Answer: Option E

Explanation:

In I and II, the common codes are '5', '#' and '3' and the common words are 'flowers', 'are' and 'good'. Thus, in I, the remaining code '$' stands for 'really'.


13. 

Question: How many sons does D have ?

Statements:

  1. A's father has three children.
  2. B is A's brother and son of D.

A. I alone is sufficient while II alone is not sufficient
B. II alone is sufficient while I alone is not sufficient
C. Either I or II is sufficient
D. Neither I nor II is sufficient
E. Both I and II are sufficient

Answer: Option D

Explanation:

From both I and II together, we can conclude that A and B are the children of D, but the sex of A and the third child of D is not known. So, both I and II together are also not sufficient to answer the question.


14. 

Question: How is M related to N?

Statements:

  1. P, who has only two kids, M and N, is the mother-in-law of Q, who is sister-in-law of N.
  2. R, the sister-in-law of M, is the daughter-in-law of S, who has only two kids, M and N.

A. I alone is sufficient while II alone is not sufficient
B. II alone is sufficient while I alone is not sufficient
C. Either I or II is sufficient
D. Neither I nor II is sufficient
E. Both I and II are sufficient

Answer: Option A

Explanation:

From I, we conclude that P is the mother of M and N, while Q is the daughter-in-law of P and sister-in-law of N. Thus, Q is M's wife and hence, M is N's brother.

From II, we conclude that M and N are the children of S. Also, R is the daughter-in-law of S and sister-in-law of M. So, R is N's wife and thus, N is M's brother. Hence, M is either brother or sister of N.


15. 

Question: What is the colour of the fresh grass ?

Statements:

  1. Blue is called green, red is called orange, orange is called yellow.
  2. Yellow is called white, white is called black, green is called brown and brown is called purple.

A. I alone is sufficient while II alone is not sufficient
B. II alone is sufficient while I alone is not sufficient
C. Either I or II is sufficient
D. Neither I nor II is sufficient
E. Both I and II are sufficient

Answer: Option B

Explanation:

The colour of fresh grass is 'green' and as given in II, 'green' is called 'brown'. So, the colour of fresh grass is 'brown'.