What will be the average of all the prime numbers before 32?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 14.54.
The prime numbers less than 32 are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31
Sum = 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 = 160
There are 11 prime numbers less than 32.
Average = Sum of primes/Number of primes = 160/11 = 14.54