GRE- Quantitative Reasoning
each day.

Based on the information in the table, which of the following statements about the price of
gasoline among all 50 stations must be true?

I. On February 1st, the median price was less than the average price
II. On March 1st, the average price was equal to the median price.
III. The median price on March 1st was less than the median price on January 1st.

A. I only
B. I and II only
C. I and III only
D. II and III only
E. I, II, and III

Answer(s): E
Explanation: Statement I must be true. On February 1st, more stations charged less than the
average price than greater than the average price; in other words, the median price was less
than the average price. Statement II must be true. On March 1st, the number of stations
charging more than the average price was the same as the number of stations charging less
than the average price; in other words, the median price was the same as the average price.
Statement III must be true. The median price on March 1st was the same as the average price:
$2.40. The median price on January 1stwas greater than the average price of $2.50.

QUESTION: 33
The interior angles of a certain quadrilateral are measured at the ratio 1:2:3:4. If each interior
angle measures less than 180?, what is the sum of the degree measures of the smallest and
largest among these four angles?

A. 218?
B. 204?
C. 180?
D. 148?
E.108?

Answer(s): C
Explanation: The degree sum of all four angles is 360?. The ratio 1:2:3:4 tells us that the
smallest and largest angles together account for the same portion (1 and 4 in the ratio) of that
sum as the middle two angles (2 and 3 in the ratio). Hence their sum must be exactly half of

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