For years the MBA has built up its reputation as the go to degree for individuals wanting to make a move into the management field.
What's more, it has fared...
GMAT Data Sufficiency problems present you with some initial information and a question, followed by two statements. You have to decide whether the information contained in each statement is sufficient, when combined with the initial information, to give a definite answer to the question. In this case, a definite answer means being able to answer either “definitely yes” or “definitely no” to the question. If you can only answer “definitely maybe” then the statement is not sufficient by itself. If neither statement is sufficient by itself to give a definite answer, you then evaluate whether the two statements taken together are sufficient to find a definite answer. Some questions involve solving for a value; for these questions, a statement is sufficient if it allows you to solve for one, but no more than one, value.
In case you haven’t seen a Data Sufficiency question before, here’s an example:
If x is even and y is a positive integer, is the sum of x and y an odd integer?
1) x is a negative integer
2) the square of y is an even integer
Notice that since we already know that x is even, the only way for the sum of x and y to be odd is for y itself to be odd. So we can rephrase the question as “Is y an odd integer?”
Statement 1 is irrelevant. The fact that x is negative tells us nothing about whether y is odd or even. So statement 1 is insufficient to answer the question.
Statement 2 is a different story. If y-squared is an even integer, that tells us that y itself is an even integer. Therefore we can answer “definitely not” to the question “is y an odd integer”, and statement 2 by itself is sufficient.
Here’s a list of tips to help you in solving GMAT Data Sufficiency questions:
For years the MBA has built up its reputation as the go to degree for individuals wanting to make a move into the management field.
What's more, it has fared...
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