Find the average of first 10 prime numbers.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 12.9
The first 10 prime numbers are - 2, 3, 5, 7, 11, 13, 17, 19, 23 & 29
⇒ Total sum = 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29
⇒ 129
⇒ Average = 129/10
⇒ 12.9