Source: Official Guide Revised GRE 1st Ed. Part 8; Section 5; #3

2

x<y<z

x < y < z Quantity A : (x+y+z)/3 Quantity B : y Quantity A is greater., Quantity B is greater., The two quantities are equal., The relationship cannot be determined from the information given.

2 Explanations

1

Roshan Shrestha

Another way to think about this is: The expression in Quantity A is the mean. We know that the mean is equal to the median (y) for our three numbers in Arithmetic progression and the mean is not equal to the median (y) if the three numbers are not in Arithmetic progression as long as (x

Jan 21, 2017 • Comment

1

Gravatar Chris Lele, Magoosh Tutor

Oct 11, 2012 • Comment

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