Study Notes For General Aptitude Part A: Data-Sufficiency (Download PDF)

By Astha Singh|Updated : February 23rd, 2022

The upcoming CSIR NET 2022 exam is not so far away and it is the right time for the candidates to roll their sleeves devote all their time to prepare themselves for it. While preparing for the examination, it is very important to revise the concepts and topics that they have covered so far. They must also practice as many mocks as they can to ensure the time and speed they take to complete the questions. The candidates should focus on practising the questions that have been repeated often in previous year's question papers. Data-Sufficiency is one such topic that can help you score well within the time limitation of the important and most scoring topics of the General Aptitude (Part A) through which one can score full marks in this section.

Time management, proper exam strategies, and being updated on the news regarding the exam can be the key to success for the student. The study notes can be the best way to revise the topics simply in no time. We at BYJUS EXAM PREP Prep have formulated study notes for Direction And Distance under the General Aptitude to help their CSIR NET 2022 preparations easily.

We've come up with the study notes on Data-Sufficiency for the upcoming exam CSIR-NET 2022. Scroll down the article below and learn this concept to crack the exam.

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Study Notes On Data Sufficiency

Data Sufficiency

It is an important topic in almost all competitive exams. As we all know, time is one of the most important factors in exams, but questions of data sufficiency require some time. One must not be guessed or in a hurry while solving these questions. Each question of this topic consists of a question with two statements numbered I and II. One has to analyse the problem, read the given statements and give the answer:

⦁ If data in statement I alone is sufficient, while the data in statement II alone is not sufficient to answer the question.

⦁If data in statement II alone is sufficient, while the data in statement I alone is not sufficient to answer the question.

⦁ If data in either I alone or in II alone are sufficient.⦁ If data in both I and II together are not sufficient.

⦁ If data in both I and II together are necessary to answer. Questions of Data Sufficiency are based on some typical cases like:

⦁ Relations

⦁ Ages

⦁ Comparison etc.

Comparison is done between two or more persons or things. One needs to carefully read the question and solve both statements thoroughly to get the right option.

Direction:

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 the answer.

There are six persons A, B, C, D, E and F who went to Goa on six different dates from 1st July to 6th July, but not necessarily in the same order. Who went to Goa on 4th of July?

⦁ E went on an odd date. B went on even date, but not on 6th July. D went on an odd date. Two persons went between D and A.

⦁ E went just after C. Only one person went between C and B. A went on an even date. Explanation –

Clearly, the question cannot be answered. Thus, the statement I alone is not sufficient. From Statement II:

statement II alone is not sufficient. From Statement I and II together: statement II alone is not sufficient. From Statement I and II together:

So, C went on 4th July. Thus, statements I and II together are necessary.

Direction:

⦁ A has more money than C and F.

⦁ C has more money than F who has more money than G and H. Explanation –From statement I, we get A > C, FFrom Statement II, we get C > F > G, H Combining both the statements, we get A > C > F > G, H
Clearly, A has the highest amount of money.

Direction:

⦁ X’s mother is the sister of Y’s father.

⦁ Y’s uncle is the grandfather of X’s brother. Explanation –From the statement, I:X’s mother is the sister of Y’s father.
Clearly, X is the cousin of Y. From Statement II: Y’s uncle is the grandfather of X’s brother