Reasoning: Data Sufficiency Set 1

Directions (1-10): In each of the following questions, a question is followed by two statements numbered I and II. Read both the statements and answer accordingly.

  1. Who is the tallest among A , B, C, D, E and F?
    I. E is taller than C who is taller than B.
    II. F is taller than both E and A. B is not the shortest
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
      Option E
    Explanation:

    From both statements, we do not get exact order of the heights but get that F is tallest
  2. What is the position of Vinita from right of row?
    I. Ruchi is sitting at 6th position from the left end of row. There is one person sitting between Ruchi and Vinita.
    II. Prerna is sitting at 13th position from the right end and also at 12th position from the left end of row in which Ruchi is sitting.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
      Option D
    Explanation:

    For the answer of question we require: Total number of people in the row and then Vinita’s position. From statement II we get the total number of people as (13+12 -1) = 24. From statement I, it cannot be known that Vinita is 4th from the left end OR 8th from the left end. So from both also cannot be determined.
  3. Preeti is sitting at which position respect to Lohit in a circular arrangement?
    I. Five people are sitting in a circle facing centre. Anu is third to left of Kanu who is who is second to right of Preeti.
    II. Anu is sitting second to left of Tanu who is sitting second to left of Lohit.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
     Option E
    Explanation:

    From both the statements, positions of all 5 people sitting can be determined. So Preeti’s position with respect to Lohit can also be determined.
  4. What is the distance between points A and B?
    I. Point A is 8 km to the west of point F. Point D which is midway between points B and F is 3 km away from point B.
    II. Point H which is in east of point F is also in east of point B.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
      Option D
    Explanation:

    From statement I, we get AF = 8 km, BF = 3+3 = 6 km. We are not given that points B and D are in which direction with respect to point F. If AFB makes a straight line, then AB = 8+6 = 14 km
    If point B is in south of north direction, then AB = √(8^2 + 6^2) = 10
    From statement II, we get that B is in east or west of F.
    So from both the statements also, we cannot determine.
  5. How is Pankaj related to Yogit?
    I. Rani who is the wife of Yogit is also the daughter-in-law of Reena. Reena is the mother of Pankaj.
    II. Suhas is the grandfather of Lavina who is the daughter of Yogit. Pankaj is the brother-in-law of Lavina’s mother Rani.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
     Option B
    Explanation:

    Statement I does not tell the gender of Pankaj, so brother/sister of Yogit
    From statement II, Lavina is daughter of Yogit and Rani(mother). Pankaj is the brother-in-law of Rani, so he is brother of Yogit.
  6. Who among A, B, C, D, and E (all facing north) is sitting in the middle of a row?
    I. D is sitting fourth to right of A who is to the immediate left of B.
    II. There are as many people between C and B as between A and E.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
      Option E
    Explanation:

    We get 2 arrangements as:
    C A B E D and E A B C D
    in both arrangements, B is in middle.
  7. What is the code of ‘book’ in a certain code language?
    I. ‘look into book’ is coded as ‘df ty bn’ and ‘the book is best’ is coded as ‘bn sc uj ik’ in that code.
    II. ‘she loved the book’ is coded as ‘hb sn ju lp’ and ‘book she has is good’ is coded as ‘sn km er tr ju’ in that code.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
      Option A
    Explanation:

    In statement I, ‘book’ is present in both codes and ‘bn’ also. So ‘book’ – ‘bn’
    In statement II, ‘she’ and ‘book’ both are present in 2 codes given, so ‘book’ can be either ‘sn’ or ‘ju’.
  8. Point P is in which direction with respect to point Q?
    I. Point T is in north direction of point V which is in east of point S.
    II. Point S is in south of point P which is midway points C and Q. Q is in north direction of point of V.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
     Option E
    Explanation:

  9. Is some lions are tigers?
    I. Some lions are rats. All rats are dogs. Some rats are tigers.
    II. All rats are tigers. Some tigers are dogs. Some lions are rats.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
      Option B
    Explanation:

    From statement I, it is not definite that some lions are tigers or not.
    From statement II, some lions are tigers is definite.
  10. What is Suhail’s position from the left end in a row?
    I. In a row having 15 people, Sona is sitting 12th from the right end of row. Suhail is sitting 2nd to the right of Sona.
    II. In a row of 20 people if Arnav and Suhail change their positions, Arnav will be sitting at 8th from the right end of row.
    A) If the data in statement I alone is sufficient to answer the question.
    B) If the data in statement II alone is sufficient to answer the question.
    C) If the data either in statement I alone or statement II alone are sufficient to answer the question.
    D) If the data given in both I and II together are not sufficient to answer the question.
    E) If the data in both the statements I and II together are necessary to answer the question.
     
    View Answer
      Option C
    Explanation:

    From Statement I, Sona is 12th from the right end, so Suhail is 10th from right end so (15-10+1) 6th from left end.
    From statement II, Arnav is 8th from right end means before changing postions, Suhail was at 8th position from right, so (20-8+1) = 13th from left end

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