# GMAT Data Sufficiency Questions and Answers for Practice with Tricks

Directions: 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
(1) 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;
(2) 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
(3) if the data either in statement I alone or in statement II alone are sufficient to answer the question;
(4) if the data given in both the statements I and II together are not sufficient to answer the question
(5) If the data in both the statements I and II together are necessary to answer the question.

1. A, B, C, D who are married to P, Q, R, S are sitting opposite to each other. No one is sitting in front of their spouse. Who is sitting opposite to B?
I. A and C are married to Q and S respectively and R is sitting opposite to the only person between B and D.
II. C, B and P are sitting in corners. Q is sitting opposite to the only person between C and A.

2. There are two vessels of equal volume. ‘Vessel 1’ is half filled with milk and ‘Vessel 2’ is half filled with water. Some part of the liquid from ‘Vessel 1’ is transferred to ‘Vessel 2’ and then an equal amount is transferred from ‘Vessel 2’ to ‘Vessel 1’ and finally the same amount is transferred from ‘Vessel 1’ to ‘Vessel 2’. What is the amount of liquid that is transferred each time from one vessel to the other?
I. After the final transfer the amount of milk in both the vessels is the same.
II. The volume of each of the two vessels is 10 litres.

3. □ABCD is a square inscribed in a circle. Find A(□ABCD).
I. The diagonal of the square passes through the centre of the circle.
II. The radius of the circle is 5 cm.

4. What is the sum of all internal angles of a polygon?
I. One of the internal angles is 108°.
II. The polygon is a regular polygon.

5. Who is the mother of Rajesh?
I. Asha’s husband Tarun is the maternal uncle of Rajesh.
II. Nirmala’s husband Ishwar is the only brother-in-law of Tarun.

6. Four matches P, Q, R and S were held, one on each day, on four consecutive days, but not necessarily in that order. Which day was the match S held on?
I. A match was held on September 11th and was followed by match R.
II. Match held on September 13th was not P and there was a gap of one day between P and Q.

7. Is C sister of D?
I. A has two daughters, one of which is D.
II. C’s father is married to A.

8. Who is the tallest among the five friends?
I. D is taller than A but shorter than C.
II. B is taller than C and E.

9. A, B, C, D and E are sitting in a row. Who among them is in the middle?
I. E is to the left of C and A is to the right of D.
II. There is one person between A and E.

10. In ΔABC, AB = 1 cm, BC = 2 cm. Find AC.
I. The three sides of the triangle are in G.P.
II. <AABC = 30°

## Read More Questions on Data Sufficiency

11. In ΔABC, AB = AC = 6 cm. What is the area of the triangle?
I. <BCA = 30°
II. BC = 3 cm

12. What is the geometric mean of four consecutive odd numbers?
I. Arithmetic mean of the numbers is 8.
II. One of the numbers is 7.

13. Which club does Zidane play for?
I. Beckham plays for Juventus.
II. Zidane is the only player signed by his club

14. The club for which Ibrahimovich plays is:
I. Ibrahimovich does not play for Man U.
II. Zidane plays for Chelsea. .

15. Which club does Beckham play for?
I. Zidane plays -for Chelsea.
II. Ronaldino does not play for Real Madrid.

16. Find the club for which Crespo plays.
I. Ronaldino does not play for Bayern Muchen
II. Ronaldino plays for Bayern Muchen.

17. Which club does Ronaldino play for?
I. Ronaldino does not play for Real Madrid.
II. Beckham plays for Chelsea.

18. What percentage of the population of a village comprises unmarried females? (One man can marry only one woman in his lifetime and vice versa.)
I. 2/5th of the population comprises males.
II. There are 300 unmarried males.
III. There are 600 married females.

19. There are six members in a family, namely A, B, C, D, E and F. What is the relation between E and F?
I. There are two couples and three generations in the family.
II. E is brother of D and F is sister-in-law of D.
III. A is the only grandson and F is the only daughter-in-law of B and C.

20. A, B and C are sitting in a row facing X, Y and Z. Who is sitting in front of B?
I. A and Z are sitting in corner seats but not facing each other.
II. C is sitting in a corner and is extreme diagonal to Y.
III. Neither B nor X likes to sit in the corner.