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Опрос |
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GMAT/Data Sufficiency
If a + b + c = 50, what is the value of a?
(1) c = 4a - b.
(2) The average of b and c is 2a.
A) if statement I 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 I alone is not sufficient
C) if both statements together are needed to answer the question, but neither statement alone Is sufficient
D) if either statement by itself is sufficient to answer the question
E) if not enough facts are given to answer the question
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| Решение |
D) either statement by itself is sufficient to answer the question |
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We must do something about the rising cost of our state prisons. It now
costs an average of $132 per day to maintain a prisoner in a double-occupancy
cell in a state prison. Yet, in the most expensive cities in the world, one can
find rooms in the finest hotels which rent for less than $125 per night.
The argument above might be criticized in all of the following ways EXCEPT:
А) it introduces an inappropriate analogy
В) it relies on an unwarranted appeal to authority
С) it fails to take account of costs which prisons have but hotels do not have
D) it misuses numerical data
Е) it draws a faulty comparison
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