T is the set of all positive numbers n such that n <50 and the square root of n is an interger. What is the median value of the members of set T?

Question

A. 4
B. 16
C. 20
D. 25
E. 49

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I don't really understand the question?

Answer 1

B.16
In set T there are 7 numbers which suits n<50 and square root n is an integer.
1,4,9,16,25,36,49
median is the middle number, therefore answer is 16.