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¡¡¡¡Data Sufficiency
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¡¡¡¡INTRODUCTION DATA SUFFICIENCY
¡¡¡¡Most people have much more difficulty with the Data Sufficiency problems tha
¡¡¡¡n with the Standard Math problems. However£¬ the mathematical knowledge and s
¡¡¡¡kill required to solve Data Sufficiency problems is no greater than that req
¡¡¡¡uired to solve standard math problems. What makes Data Sufficiency problems
¡¡¡¡appear harder at first is the complicated directions. But once you become fa
¡¡¡¡miliar with the directions£¬ you'll find these problems no harder than standa
¡¡¡¡rd math problems. In fact£¬ people usually become proficient more quickly on
¡¡¡¡Data Sufficiency problems.
¡¡¡¡THE DIRECTIONS
¡¡¡¡The directions for Data Sufficiency questions are rather complicated. Before
¡¡¡¡reading any further£¬ take some time to learn the directions cold. Some of t
¡¡¡¡he wording in the directions below has been changed from the GMAT to make it
¡¡¡¡clearer. You should never have to look at the instructions during the test.
¡¡¡¡Directions£º Each of the following Data Sufficiency problems contains a quest
¡¡¡¡ion followed by two statements£¬ numbered £¨1£© and £¨2£©¡£ You need not solve the
¡¡¡¡problem£» rather you must decide whether the information given is sufficient
¡¡¡¡to solve the problem.
¡¡¡¡The correct answer to a question is
¡¡¡¡A if statement £¨1£© ALONE is sufficient to answer the question but statement
¡¡¡¡£¨2£© alone is not sufficient£»
¡¡¡¡B if statement £¨2£© ALONE is sufficient to answer the question but statement
¡¡¡¡£¨1£© alone is not sufficient£»
¡¡¡¡C if the two statements TAKEN TOGETHER are sufficient to answer the question
¡¡¡¡£¬ but NEITHER statement ALONE is sufficient£»
¡¡¡¡D if EACH statement ALONE is sufficient to answer the question£»
¡¡¡¡E if the two statements TAKEN TOGETHER are still NOT sufficient to answer th
¡¡¡¡e question.
¡¡¡¡Numbers£º Only real numbers are used. That is£¬ there are no complex numbers.
¡¡¡¡Drawings£º The drawings are drawn to scale according to the information given
¡¡¡¡in the question£¬ but may conflict with the information given in statements
¡¡¡¡£¨1£© and £¨2£©¡£
