Descriptive Statistics, Prime Numbers, Progressions

This question evaluates your concept and understanding of 3 topics. The core topic tested is that of Descriptive Statistics. Basic understanding of Prime Numbers and Progressions is definitely needed.

The ages of three friends are prime numbers. The sum of the ages is less than 51. If the ages are in Arithmetic Progression (AP) and if at least one of the ages is greater than 10, what is the difference between the maximum possible median and minimum possible median of the ages of the three friends?

(A) 0
(B) 1
(C) 13
(D) 6
(E) 8

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