Data Sufficiency MCQ Quiz - Objective Question with Answer for Data Sufficiency - Download Free PDF

Last updated on Jun 23, 2025

Latest Data Sufficiency MCQ Objective Questions

Data Sufficiency Question 1:

Direction: In the following question, a given question is followed by information in three statements. You have to find out the data in which statement (s) is sufficient to answer the question and mark your answer accordingly.

Six people - B, E, H, K, M, and W are sitting around a circular table facing inside. Who is sitting to the immediate right of W?

I. K is sitting second to the left of W.

II. W is sitting exactly opposite to B.  

III. H is sitting immediate right of E.

  1. Statement I alone is sufficient to answer the question
  2. Statement II alone is sufficient to answer the question
  3. Statement III alone is sufficient to answer the question
  4. All the statements are required to answer the question
  5. Not Attempted
  6. None of the above

Answer (Detailed Solution Below)

Option 4 : All the statements are required to answer the question

Data Sufficiency Question 1 Detailed Solution

From statement I:

RRB 5 feb-12

Thus, statement I alone is not sufficient to answer the question.

From statement II:

RRB 5 feb-13

Thus, statement II alone is not sufficient to answer the question.

From statement III:

RRB 5 feb-14

Thus, statement III alone is not sufficient to answer the question.

On combining statements I, II and III:

RRB 5 feb-15

Hence, all the statements are required to answer the question.

Data Sufficiency Question 2:

The question given below is made up of two statements 1 and 2. You have to decide whether the information given in the statements is sufficient to answer the question. Read both the statements and select the correct answer.

The question, how is 'LIVE' written in the code language?

1. 'LIFE' is written as ©@52.

2. 'POEM' is written as 5#*3.

  1. The data in both Statement 1 and Statement 2 are sufficient to answer the question.
  2. The data in both Statement 1 and Statement 2 are not sufficient to answer the question.
  3. The data in statement 2 are sufficient to answer the question.
  4. The data in statement 1 are sufficient to answer the question.
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : The data in both Statement 1 and Statement 2 are not sufficient to answer the question.

Data Sufficiency Question 2 Detailed Solution

Statement 1 : 

'LIFE' is written as ©@52  → We can not determine the code of individual letters.

Statement 2:

'POEM' is written as 5#*3 →  We can not determine the code of individual letters.

By combining both of the statements:

The data in both Statement 1 and Statement 2 are not sufficient to answer the question because the code for 'V' is still unknown.

Hence, 'The data in both Statement 1 and Statement 2 are not sufficient to answer the question' is the correct answer.

Data Sufficiency Question 3:

A is the brother of B and son of C and D. E is B's husband and F's father.

What additional information is needed to answer how C is related to A?

  1. B is the only daughter of C and D.
  2. D is the maternal grandfather of F.
  3. F is the only grandson of C.
  4. A is the son of C
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : D is the maternal grandfather of F.

Data Sufficiency Question 3 Detailed Solution

1) A is the brother of B and son of C and D.

Implies, C and D are the parents of A and B.

2) E is B's husband and F's father.

Implies, B is the sister of A. Also, F is the child of B and E.

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(1) B is the only daughter of C and D → It is clear from the above family tree diagram that B is the only daughter of C and D.

(2) D is the maternal grandfather of F → Implies, D is the husband of C and it further implies that C is the mother of A.

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(3) F is the only grandson of C → Implies, F is a male.

(4) A is the son of C → It is clear from the above family tree diagram that A is the son of C.

Hence, C is the mother of A, and the data in "option (2)" is sufficient to answer the question.

Data Sufficiency Question 4:

The question given below consists of two statements I and II. You have to decide whether the data given in the statements are sufficient to answer the question given below. Read both the statements and choose the correct option.

In which direction is column P with respect to column Q?

I. Pillar P is to the south of Pillar X, which is to the west of Pillar B. Pillar Q is to the north of Pillar B.

II. Pillar P is to the southeast of Pillar B. Pillar X is to the southeast of Pillar Q.

  1. The data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.
  2. The data in statements I and II together are not sufficient to answer the question.
  3. The data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.
  4. The data in statements I and II together are sufficient to answer the question.
  5. None of the above

Answer (Detailed Solution Below)

Option 1 : The data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.

Data Sufficiency Question 4 Detailed Solution

By statement (I) :

Pillar P is to the south of Pillar X, which is to the west of Pillar B. Pillar Q is to the north of Pillar B.

F1 Shraddha Rishabh 08.01.2021 D5

By this statement, we can say that Pillar P is in South - West direction with respect to the pillar Q.

By statement (II) :

Pillar P is to the southeast of Pillar B. Pillar X is to the southeast of Pillar Q.

F1 Shraddha Rishabh 08.01.2021 D6

By this statement, we can not determine the position of pillar P with respect to pillar Q

Hence, data in statement (I) is sufficient to give the answer.

Data Sufficiency Question 5:

Questions and two statements are given. Find out which statement is/are necessary/ sufficient to answer the given question.

Question: Which one is the lightest among A, B, C, D, and E?

Statements:

I. C is heavier than B and E but lighter than D.

II. D is not the heaviest.

  1. Only statement I is sufficient to answer the question.
  2. Only statement II is sufficient to answer the question.
  3. Data insufficient
  4. Both statement I or statement II alone is sufficient to answer the question.
  5. None of the above

Answer (Detailed Solution Below)

Option 3 : Data insufficient

Data Sufficiency Question 5 Detailed Solution

According to the statement I:  D is heavier than C who is heavier than both B and E.

⇒ D > C > B/E

This statement alone is not sufficient to answer the question as we don't know the relation between B and E.

According to the second statement 2 : D is not the heaviest.

This statement alone is not sufficient to answer the question as we need to identify the person who is the lightest.

If we combine the two statements, we get:

A must be heavier than D because C, B, and E are lighter than D.

⇒ A > D > C > B/E

Thus, even if we combine the two statements, we cannot determine who is the lightest as the relation between B and E cannot be determined.

Hence, "data is not sufficient" to answer the question.

Top Data Sufficiency MCQ Objective Questions

Read the question below followed by two statements. Study them and decide which statement(s) is/are sufficient to answer the question.

Question: P, Q, R, S, and T have different heights. Who among the following is tallest?

Statements:

I) Neither P nor R is the tallest. S is taller than P.

II) P is taller than R and T. S is taller than Q who is not shorter than P.

  1. Neither statement I nor II is sufficient
  2. Statement I alone is sufficient while II alone is not sufficient
  3. Statement II alone is sufficient while I alone is not sufficient
  4. Both statement I and II together is sufficient

Answer (Detailed Solution Below)

Option 3 : Statement II alone is sufficient while I alone is not sufficient

Data Sufficiency Question 6 Detailed Solution

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Statements:

I) Neither P nor R is the tallest. S is taller than P.

S > P

II) P is taller than R and T. S is taller than Q, who is not shorter than P. So, we have the following arrangement.

⇒  P is taller than R and T.

→ P > T > R, or

→ P > R > T ....... (i)

⇒ S is taller than Q

→ S > Q ........   (ii)

⇒ Q is not shorter than P.

→ Q > P   ........ (iii)

Combining all these, we get:

S > Q > P > R/T > T/R

Therefore, S is the tallest.

Only statement II is sufficient to find the tallest person among P, Q, R, S and T.

Hence, option 3 is the correct answer. 

Directions: The question 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.

What is the distance between A and B?

Statement I: C is in midway of distance between A and D.

Statement II: B is 3 km east of E.

  1. I alone is sufficient while II alone is not sufficient.
  2. II alone is sufficient while I alone is not sufficient.
  3. Both I and II are sufficient.
  4. Neither I nor II is sufficient.

Answer (Detailed Solution Below)

Option 4 : Neither I nor II is sufficient.

Data Sufficiency Question 7 Detailed Solution

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1) Distance between A and D is not specified. So, finding its midway and placing C is not possible. So, statement I alone is not sufficient to answer the question.

2) B is 3 km east of E.

RRB JE FT 14 Shivraj 22Q 19 feb 19

So, statement II alone is not sufficient to answer the question.

3) Combination of statements I and II is not possible.

Hence, the data given in the both statements I and II together are not sufficient to answer the question.

A question is given, followed by two statements labelled I and II. Identify which of the statements is/are sufficient to answer the question.

Question:

How many soldiers are there between William and David in a row of soldiers, all facing north?

Statements:

(I) William is 15th from the extreme left end of the row.

(II) David is exactly in the middle of the row and there are ten soldiers to his right.

  1. II alone is sufficient, while I alone is not sufficient
  2. I alone is sufficient, while II alone is not sufficient
  3. Both I and II together are not sufficient
  4. Both I and II together are sufficient

Answer (Detailed Solution Below)

Option 4 : Both I and II together are sufficient

Data Sufficiency Question 8 Detailed Solution

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Statements:

(I) William is 15th from the extreme left end of the row.

F1 Savita Railways 04-7-22 D5

(II) David is exactly in the middle of the row and there are ten soldiers to his right.

F1 Savita Railways 04-7-22 D6

So David rank 11th from the left.

When combining Statement I and II:

F1 Savita Railways 04-7-22 D7

soldiers are there between William and David = William rank from right - David rank from right - 1

soldiers are there between William and David = 15 - 11 - 1 = 15 - 12 = 3

So, "3" soldiers are there between William and David

Hence, "Both I and II together are sufficient"

Read the given question and decide which of the following statements is/are sufficient to answer the question.

Five persons - G, H, I, J and F are of different weight. Who among them is lightest?

I. F is heavier than H and J but is lighter than G.

II. H is heavier than I.

  1. Both I and II are sufficient
  2. Only II is sufficient
  3. Only I is sufficient
  4. Both I and II together are not sufficient to answer.

Answer (Detailed Solution Below)

Option 4 : Both I and II together are not sufficient to answer.

Data Sufficiency Question 9 Detailed Solution

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Statement I: F is heavier than H and J but is lighter than G.

G > F > H/J

Statement I alone is not sufficient to answer the question.

Statement II. H is heavier than I.

Alone statement II you cannot predict which is lightest among five.

Combining statement I and statement II.

G > F > H > I > J or G > F > H > J > I or G > F > J > H > I

Either I or J is lightest among them.

Hence, “Both statements I and II together are not sufficient to answer”.

Consider the given question and decide which of the following statement is sufficient to answer the question.

What is X’s rank from the top in a class of 50 students?

Statements:

1. Y’s rank is 4 ranks below that of X and 30th from the bottom.

2. Z’s rank is 2 ranks above that of X and 32nd from the bottom.

  1. 2 alone is sufficient while 1 alone is not sufficient to answer the given question. 
  2. Either 1 or 2 is sufficient to answer the given question.
  3. Both 1 and 2 are sufficient to answer the given question.
  4. 1 alone is sufficient while 2 alone is not sufficient to answer the given question.

Answer (Detailed Solution Below)

Option 2 : Either 1 or 2 is sufficient to answer the given question.

Data Sufficiency Question 10 Detailed Solution

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From statement 1: Y’s rank is 4 ranks below that of X and 30th from the bottom.

Thus X’s rank is 34th from the bottom.

As the total number of students is 50, X’s rank from the top will be 50 – 34 + 1 = 17

From statement 2: Z’s rank is 2 ranks above that of X and 32nd from the bottom.

Thus, X’s rank is 30th from the bottom.

As the total number of students is 50, X’s rank from the top will be 50 – 30 + 1 = 21

So, we can say that either 1 or 2 is sufficient to answer the given question.

Decide whether the data provided in the statements numbered I and II is sufficient to answer the given question.
Question:

What is the ratio of boys to girls in a class?

Statements:

I. There are 20 boys in the class.

II. The ratio of girls to the number of students in the whole class is 3 : 7

  1. Either statement I or II is sufficient
  2. Statement I alone is sufficient while II alone is not sufficient 
  3. Statement II alone is sufficient while I alone is not sufficient.
  4. Neither statement I nor II is sufficient.

Answer (Detailed Solution Below)

Option 3 : Statement II alone is sufficient while I alone is not sufficient.

Data Sufficiency Question 11 Detailed Solution

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I. There are 20 boys in the class.

From this we cannot find the ratio of boys to girls in the class.

II. The ratio of girls to the number of students in the whole class is 3 : 7

So, the ratio of boys to girls in the class is 4 : 3.

Hence, statement II alone is sufficient while I alone is not sufficient. 

Given below is a question followed by two statements. Analyze and decide whether the question can be answered from the given statements.

Question: How D is related to F?

Statement I: B has two sisters E and F.

Statement II: A is the mother of B, who Is the brother of D.

  1. Statement I and II together are not sufficient
  2. Statement I and II together are sufficient
  3. Statement II alone is sufficient
  4. Statement I alone is sufficient

Answer (Detailed Solution Below)

Option 1 : Statement I and II together are not sufficient

Data Sufficiency Question 12 Detailed Solution

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Important Points

  • The question is asking about D's relation with F.
  • For this, we must know the gender of D.

Statement I: B has two sisters E and F.

Data suff Nitya Shrivastav 30Oct20 pankaj chaudhary D9

We cannot say how D is related to F using this statement.

Statement II: A is the mother of B, who Is the brother of D.

Data suff Nitya Shrivastav 30Oct20 pankaj chaudhary D10

We cannot say how D is related to F using this statement.

Combining both statements, we get:

Data suff Nitya Shrivastav 30Oct20 pankaj chaudhary D11

We cannot say how D is related to F because we don’t know the gender of D.

Hence, ‘Statement I and II together are not sufficient is the correct answer.

Mistake Points'B has two sisters E and F.' doesn't specify that B has only 2 sisters. Had the word only been given in the sentence, we could have concluded that D.

A question and three statements labelled (I), (II) and (III) are given. You have to decide which statement(s) is/are sufficient to answer the question.

Question: Who is the shortest among A, B, C, D and E?

Statements:

I. A is taller than E but shorter than D.

II. B is shorter than C but taller than E.

III. D is taller than C and A is taller than B.

  1. Statements I and III together are sufficient.
  2. Statements I and II together are sufficient.
  3. Statements I, II and III are sufficient.
  4. Statements I, II and III are insufficient.

Answer (Detailed Solution Below)

Option 2 : Statements I and II together are sufficient.

Data Sufficiency Question 13 Detailed Solution

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Persons: A, B, C, D, and E.

I. A is taller than E but shorter than D.

D > A > E 

II. B is shorter than C but taller than E.

C > B > E

III. D is taller than C and A is taller than B.

D > C and A > B

Option 1: combining statements I and III:

D > A > E  and D > C and A > B

D > _  >  _ >  _  >  _  

We will not get any result by combining the two statements.
 
Option 2: combining statements I and II:
 
D > A > E  and C > B > E
 

_ > _  >  _ >  _  >  E 

E is the shortest among all the five. So this is sufficient to answer.

Option 3: combining statements I, II, and III:
 

D > C/A > A/C > B > E

Now, we can say that E is the shortest among A, B, C, D and E. Statements I, II, and III are sufficient.

Note: There is a discrepancy in the original question and marked options.

When statements 1 and 2 combinedly give the answer then obviously with the help of statement 3 we can also give the answer, but we need to choose the minimum statement required to give the answer.

Hence, Statements I and II together are sufficient is the correct answer.

Consider the given question and decode which of the following statements is sufficient to answer the question.

Who among P, Q, R, S and T is lightest in weight?

Statements:

1. Q weight < P and S also S weight > T

2. R weight > Q but < T

  1. Statement 2 alone is sufficient while statement 1 alone is insufficient.
  2. Both statement 1 and 2 are sufficient.
  3. Neither statement 1 nor 2 is sufficient.
  4. Statement 1 alone is sufficient while statement 2 alone is insufficient.

Answer (Detailed Solution Below)

Option 2 : Both statement 1 and 2 are sufficient.

Data Sufficiency Question 14 Detailed Solution

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Using statement 1: Q < P, S and S > T

Using statement 2: Q < R < T

So, after joining both the statements Q < R < T < P, S.

Thus both the statements are sufficient to answer the question.

Consider the given question and decide which of the following statements is sufficient to answer the question.

How Swathi is related to Namitha?

Statements:

I. Swathi’s husband is the only son of Namitha’s mother.

II. Swathi’s brother and Namitha’s husband are cousins.

  1. Both I and II are sufficient to answer the question.
  2. II alone is sufficient while I alone is not sufficient to answer the question.
  3. Either I or II is sufficient to answer the question.
  4. I alone is sufficient while II alone is not sufficient to answer the question.

Answer (Detailed Solution Below)

Option 4 : I alone is sufficient while II alone is not sufficient to answer the question.

Data Sufficiency Question 15 Detailed Solution

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According to statement 1, Swati’s husband and Namitha are siblings. So Swati is sister-in law of Namitha.

According to statement 2, Swati's brother is the cousin of Namitha’s husband but here gender of Swathi is not definite. So, we can't find the relation of Swathi with Namitha.

Hence, I alone is sufficient while II alone is not sufficient to answer the question.
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