Practice MCQ Questions and Answer on Data Sufficiency

11. Question :

What is Sachin's rank from the top in a class of 25 students ?

Statements :
I. Sachin ranks three ranks above Amit who ranks 18th from the bottom.
II. Sachin's rank from the top is two ranks below Deepti who ranks 23rd from the bottom.

• (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

Show Answer

 From I, We know that in a class of 25 students, Amit ranks 18th from the bottom and 8th from the top. Sachin is three ranks above Amit and so, Sachin ranks 5th from the top. From II, Deepti ranks 23rd from the bottom and hence, 3rd from the top. Sachin, being 2 ranks below Deepti, is, thus, 5th from the top.

12. Question :

How is M related to N ?

Statements :
I. B is the daughter of M and sister of Q.
II. N is the son of K who is B's grandfather.

• (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

Show Answer

 From II, we know that N is K's son and K is B's grandfather. Thus, N is the son of B's grandfather i.e. N is either father or uncle of B. From I, B is the daughter of M. So, M is either father or mother of B. Clearly, the correct relationship between M and N cannot be deduced.

13. Question :

What time did the train leave today ?

Statements :
I. The train normally leaves on time.
II. 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

Show Answer

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

14. Question :

In a certain code language, '297' means 'tie clip button'. Which number means 'button' in that language ?

Statements :
I. In that language, '926' means 'clip your tie'.
II. In that language, '175' means 'hole and button'.

• (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

Show Answer

 In given statement and I, the common words are 'tie' and 'clip' and the common codes are '2' and '9'. So, '2' and '9' are the codes for 'tie' and 'clip'. Thus, in the given statement, '7' means 'button'. In given statement and II, the common code word '7' represents the common word 'button'.

15. Question :

What does 'nip' stand for in a code language ?

Statements :
I. In the code language, 'that is very beautiful' is written as 'se nip sre num'.
II. In the same code language, 'my house is beautiful' is written as 'nip sto sre tip'.

• (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

Show Answer

 In I and II, the common codes are 'nip' and 'sre' and the common words are 'is' and 'beautiful' So, 'nip' and 'sre' are the codes for 'is' and 'beautiful'. But, the exact word for 'nip' cannot be found out.

16. Question :

How is A related to D ?

Statements :
I. B is the brother of A.
II. B is D's son.

• (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

Show Answer

 From I and II, we conclude that A is either son or daughter of D.

17. Question :

What is the code for 'is' in the code language ?

Statements :
I. In the code language, 'shi tu ke' means 'pen is blue'.
II. In the same code language, 'ke si re' means 'this is wonderful'.

• (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

Show Answer

Answer & Solution Answer: Option E Solution: In I and II, the common word is 'is' and the common code word is 'ke'. So, 'ke' is the code for 'is'.

18. Question :

How is Tanya related to the man in the photograph ?

Statements :
I. Man in the photograph is the only son of Tanya's grandfather.
II. The man in the photograph has no brothers or sisters and his father is Tanya's grandfather.

• (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

Show Answer

 From I, we conclude that the man is the only son of Tanya's grandfather i.e. he is Tanya's father or Tanya is the man's daughter. From II, we conclude that the man's father is Tanya's grandfather. Since the man has no brothers or sisters, so he is Tanya's father or Tanya is the man's daughter.

19. Question :

Five persons - A, B, C, D and E are sitting in a row. Who is sitting in the middle?

Statements :
I. B is between E and C.
II. B is to the right of E.
III. D is between A and E.

• (A) Only I and II
• (B) Only II and III
• (C) Only I and III
• (D) All I, II and III

Show Answer

 From I, the order is : E, B, C or C, B, E. From II, the order is : E, B. From III, the order is : A, D, E. Combining the above three, we get the order as : A, D, E, B, C. Clearly, E is sitting in the middle.

20. Question :

How is R related to M ?

Statements :
I. M's brother is husband of P.
II. P is mother of R's sister.

• (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

Show Answer

 From II, we conclude that P is R's mother. From I, we conclude that M is the brother or sister of P's husband, who is also R's father. Thus, R is either nephew or niece of M.