GRE Math Problem 12

Given: The average (arithmetic mean) of the measures of two angles of a quadrilateral is 60°.

Compare two values:

Column A	Column B
The average of the measures of the other two angles	120°

Solution for GRE Math Problem 11:

Average of x and y lies exactly in the middle between x and y. Average of x, y and y lies between x and y, but closer to y. As y is bigger than x, columb B is greater.
Answer:B