Data Sufficiency

Logical Reasoning Questions based on Data Sufficiency can be tried upon in this question and answers. Attempt all of them to know if you understand it's basic concept.This section is very useful for those who are preparing for competitive exams such as Written test of Bank Exams, CAT Exams, Railway Exams, SSC, UPSC,Banking,Insurance, Defence and many more.

  • Q1. Are all the four friends Viz. W, X, Y and Z who are sitting around a circular table, facing the centre?
    I. X sits second to the right of Z. Z faces the centre. Y sits to immediate right of both X and Z.
    II. W sits to immediate left of x. Y is not an immediate neighbour of W. Y sits to immediate right of Z.
    III. Z is an immediate neighbour of both W and Y. X sits to the immediate left of W. Y sits to the immediate right of X.

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  • Q2.Who is the daughter in law of B?
    I. I is the brother of D. S is the wife of J’s nephew.
    II. R is the brother of N. T is the son of N. S is the mother of T.
    III. B is the wife of D. D is the father of N. D has two children.

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  • Q3. What is the code for ‘blanket’ in a code language?
    I. ‘Use the blanket’ is written as ‘nik ta re’ in the code language.
    II. ‘Blanket is black’ is written as ‘pe da ta’.
    III. ‘Always use blanket’ is written as ‘ma re ta’.

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  • Q4.Directions : Each of the question given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements
    In which direction is Sonal walking?
    I. Sonal walked 15 kms from the starting point and took a left turn.
    II. She is walking towards north before taking a left turn.

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  • Q5. Direction: In each question there are two statements I and II, you have to select the correct answer depending upon the sufficiency of data given in the statements to answer the question.
    A survey was done among 100 people to find the number of people who can drive both motorbike and car. What can be the maximum number of people who could drive both motorbike and car?
    Statements: (i) 60 people can ride motorbike only while 30 people can drive car only.
    (ii) 50 people can ride motorbike only while 40 people can drive a car.

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  • Q6. Direction: In each question there are two statements I and II, you have to select the correct answer depending upon the sufficiency of data given in the statements to answer the question.
    How many Art galleries are there in the state?
    Statements: There is exactly one art gallery in every 2km2 area.
    (ii) In each of the 12 districts of the state there are 2 art galleries.

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  • Q7.Statement: “The Company should promote their employees on the basis of performance alone and not on the basis of length of service of an employee in that particular company”.
    Assumptions:
    I. The seniority of a person in a company is not a parameter to measure the performance of an employee.
    II. Measuring the merit of the employees of the company is possible.
    Choose the answer from the options given below:

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  • Q8.Given below is a passage followed by a possible inference which can be drawn from the facts stated in the passage. You have to examine the inference in the context of the passage and decide upon its degree of truth or falsity:
    The education and training sector in India is standing at $600 billion and the private education segment alone is expected to cross $45 billion mark by 2015 from the present $35 billion, according to the research. The higher education system in India has witnessed remarkable growth in the past few years. India is definitely ahead of other developed countries in the field of education and training. The number of institutes offering higher education is much more in India when compared to China and the USA.
    Inference: India is ahead of China and USA when it comes to higher education sector.

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  • Q9.Directions : In each question below is given a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, then consider the two conclusions together and decide which of them logically follows beyond a reasonable doubt from the information given in the statement.
    Statement: Although we have credit rating agencies in India to evaluate the credit worthiness of the companies, there is demand to have a separate rating agency to rate the credit worthiness of IT companies to protect the investors.
    Conclusions:
    I.Assessment of credit worthiness of IT companies requires separate set of skills and insights.
    II. Investors who are investing in the IT companies will now get the protection over their investments.

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  • Q10.Directions : In each question below is given a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, then consider the two conclusions together and decide which of them logically follows beyond a reasonable doubt from the information given in the statement.
    Statement: Aditya is one of the probable candidates short-listed for the post of CEO in XYZ Company.
    Conclusions:
    I. Aditya will be selected as CEO of XYZ Company.
    II. Aditya will not be selected as CEO of XYZ Company.

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