Find the median of the prime numbers from 1 to 55?

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Find the median of the prime numbers from 1 to 55?

A27

B25

C23

D21

Answer:

D. 21

Read Explanation:

According to question, All prime numbers from 1 to 55 = 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53 n = 16 even ∴ median = (n/2)th term + (n/2+1)th term)/2 = (16/2)th term +(16/2+1)th term)/2 = 8th term + 9th term = (19 + 23)/2 = 42/2 = 21

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