What is the average of all the prime numbers between 30 and 50?

A38.8

B37.8

C39.8 ✓ Correct

D39.5

Correct answer: (C) 39.8

Explanation

The average of the primes is 39.8.

Primes between 30 and 50 are 31, 37, 41, 43, 47.

Sum = 31 + 37 + 41 + 43 + 47 = 199.

Count of these primes = 5.

Average = 199 / 5 = 39.8.

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