What is the median of 2, 4, 6, \dots, 100?

  1. A. 48
  2. B. 49
  3. C. 50
  4. D. 51

Correct Answer: D. 51

Explanation

This is an arithmetic progression of even numbers with n = 50 terms. The median of an even number of terms is the average of the \frac{n}{2}th and (\frac{n}{2}+1)th terms. Thus, the median is the average of the 25th term (50) and the 26th term (52), which is \frac{50+52}{2} = 51.

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