GMAT 2020 NEWS
Data Sufficiency is a new kind of math for students giving the GMAT test, the first and the foremost important thing to understand about Data Sufficiency questions is to understand the meaning of the options and remember them. The answer choices are the same for all the Data Sufficiency questions and thus it is important to read all the choices and think what all them mean. Similar to many other things in the GMAT, the answer choices in Data Sufficiency are mentioned in a confusing way.
The type of questions asked in GMAT Data sufficiency is aimed towards checking the candidate’s knowledge of basic math facts, skills along with their reasoning, analytical, and problem-solving abilities that can help them in getting admission in business schools. Each data sufficiency presents a question and the candidates don’t have to look for the answer to the problem; rather they need to decide whether or not the information presented along with the question is sufficient enough to answer the question. There are five answer choices for each question asked, each of which builds the relationship between the question and the information provided differently. And the candidates need to choose that answer choice which describes this relationship accurately.
In GMAT Data sufficiency problems, each question includes two statements labeled I and II, where some kind of information related to them is given. The candidates have to use their problem-solving skills to decide whether the information provided in the statements is sufficient to answer the question or not. By using the information mentioned in the given statements along with the knowledge of mathematics and well-known facts, the candidates must indicate whether:
Note: The candidates must remember that in data sufficiency problems, the information provided in the statement is sufficient only in case it is possible to determine exactly one numerical value as an answer to the problem.
Example 1 – Three bags have a combined weight of 50 kilos. What is the weight of the heaviest bags?
The correct answer to the above question is option 2. Statement A is not sufficient to determine the weight of the heaviest bag. It implies only that the combined weight of the other two bags is 36 pounds. Statement B alone is sufficient enough to come to an answer. Since the weight of the 24 –kilo packages is equal to the total weight of the other two bags, the heaviest package must be 24 kilos. (Eliminate options 3 and 5). Since statement B alone is sufficient to come to an answer, but statement A alone is not, so the answer to this question is statement 2.
Example 2 – Is the product of two numbers greater than 100?
Solution: Let us consider each of the statements individually and then take them together. Statement A alone is not enough to come to a question and this can be proved by many examples.
Therefore the second statement is sufficient to solve the question. Option B is the answer.
The GMAT aspirants must understand what is being asked in the question. Do they need to find a value or do they have to check a relationship? Before starting considering two numbered statements, take a few seconds to understand the question by itself and then figure out what is being asked in the test. There are mostly 2 possibilities a specific number may be sought so you must understand what the question is asking. Once you have understood the type of question asked then start considering what kind of information is required to answer the question. This depends on the kind of question asked. In case a question related to geometry is asked, then the information required will depend on the rules candidates’ learned related to geometric facts. For instance, in case you want to know the area of a circle, then you must find out its radius, its diameter, or its circumference while to know the length of the hypotenuse of a right triangle, you must know the length of the other two sides.
On the other hand, in case a percentage question to percentage is asked then you need to apply different rules. To calculate what percentage X is of Y, you first need to know the value of X and the value of Y. When there is a change from one value to another, then increase the value of an investment. For instance, you must know the old value and the percentage by which it has increased in case you want to calculate the new value.
You must know the nature of the question asked and what information is needed to answer while attempting Data Sufficiency section. Look at each of the two numbered statements provided to you in the question and consider both of them, one by one, without building any relationship with each other. First, look at statement A and ask yourself does it provide sufficient information that can help you to reach to the question? If so, then already you have narrowed down the choices to just two: 1 and 4. If not, then the other three answer choices include 2, 3 and 5. After that look at the statement B and check is it offering enough information to answer the question? If yes, then only answers 2 and 4 are possible. If not, then considering analyzing other only answers 1, 3 and 5 as well. This way you will be able to select the right kind of answer. If any statement by itself offers much-needed information to answer the question, then you can pick from answers 1, 2 and 4, based on which statement is sufficient or whether either statement will do. If none of the statement in itself is sufficient to answer the question, then go to the third stage of combing tow statements.
Third, if needed, the candidates must combine two statements. If none of the statements by itself is sufficient to answer the question, then you must consider whether you can answer the question by combining the information given in both statements. If yes, then your answer is 3; if not, the answer is 5.
What makes Data Sufficiency questions different?
The questions asked in Data Sufficiency section aimed at testing the individual’s knowledge of basic math facts. One of the challenges in DS questions, as they are popularly called, is not to solve the question but instead understanding whether the question has a solution or not. The candidates get five answer choices, each of which establishes the relationship between the question and the information provided in a different way. The candidates have to select the answer choice that describes this relationship accurately.
Data Sufficiency: Key Learning
In the end, we can say that it is very important to read all the questions carefully in the case you are attempting GMAT Data Sufficiency questions.
So use your problem-solving skills to reach the right answer in your GMAT Data Sufficiency test!!
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