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Level of difficulties of CR questions in real GMAT?
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21 Aug 2015, 13:04
Hi All,
Three weeks back I started preparing for gmat and being non-native english speaker my weakest module is verbal and specially CR. My target is 700+.
I have a question about quality or difficulty level of 14-16 questions, which may arrive during the tests, to crack 700+ score.
Below there are 2 different questions and the 1st one, almost 91% could answer correctly, however I was stumped in question 2. And in gmatclub I saw that only 36% could answer correctly.
Are all the 14-16 CR questions in real gmat will be like question 2 to score 700+? How do the mix of questions come in the real tests when someone score, say 720-760?
TIA
1. According to a prediction of the not-so-distant future published in 1940, electricity would revolutionize agriculture. Electrodes would be inserted into the soil, and the current between them would kill bugs and weeds and make crop plants stronger.
Which of the following, if true, most strongly indicates that the logic of the prediction above is flawed?
(A) In order for farmers to avoid electric shock while working in the fields, the current could be turned off at such times without diminishing the intended effects.
(B) If the proposed plan for using electricity were put into practice, farmers would save on chemicals now being added to the soil.
(C) It cannot be taken for granted that the use of electricity is always beneficial.
(D) Since weeds are plants, electricity would affect weeds in the same way as it would affect crop plants.
2. Historian: Newton developed mathematical concepts and techniques that are fundamental to modern calculus. Leibniz developed closely analogous concepts and techniques. It has traditionally been thought that these discoveries were independent. Researchers have, however, recently discovered notes of Leibniz’ that discuss one of Newton’s books on mathematics. Several scholars have argued that since the book includes a presentation of Newton’s calculus concepts and techniques, and since the notes were written before Leibniz’ own development of calculus concepts and techniques, it is virtually certain that the traditional view is false. A more cautious conclusion than this is called for, however. Leibniz’ notes are limited to early sections of Newton’s book, sections that precede the ones in which Newton’s calculus concepts and techniques are presented.
In the historian’s reasoning, the two boldfaced portions play which of the following roles?
A. The first provides evidence in support of the overall position that the historian defends; the second is evidence that has been used to support an opposing position.
B. The first provides evidence in support of the overall position that the historian defends; the second is that position.
C. The first provides evidence in support of an intermediate conclusion that is drawn to provide support for the overall position that the historian defends; the second provides evidence against that intermediate conclusion.
D. The first is evidence that has been used to support a conclusion that the historian criticizes; the second is evidence offered in support of the historian’s own position.
E. The first is evidence that has been used to support a conclusion that the historian criticizes; the second is further information that substantiates that evidence.