Source: Revised GRE PDF 1st Ed. Section 6: Math; #24 (p. 91)

13

10, 10, 10, 10, 8, 8, 8, 8

10, 10, 10, 10, 8, 8, 8, 8, 12, 12, 11, y The twelve numbers shown represent the ages, in years, of the twelve houses on a certain city block. What is the median age, in years, of the twelve houses on the block?

3 Explanations

2

Apurva Sharma

what if y was a decimal?

Oct 10, 2017 • Comment

Jonathan , Magoosh Tutor

Hi Apurva.
I wouldn't matter -- the median would still be 10. When we have an even number of values, the median is the average of the middle two numbers. In this case, 10 and 10 are the middle numbers no matter what value y is.

Oct 30, 2017 • Reply

1

arvind d

What if y is 9?

Jul 6, 2015 • Comment

Jonathan , Magoosh Tutor

The median will still be 10. When we have an even number of values, the median is the average of the middle two numbers. In this case, 10 and 10 are the middle numbers no matter what y is.

8 8 8 8 9 10 10 10 10 10 11 12 12

You can see the middle two numbers (the 6th and 7th numbers) are still 10 and 10.

Jul 10, 2015 • Reply

2

Gravatar Chris Lele, Magoosh Tutor

Sep 26, 2012 • Comment

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