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By admin Arithmetic Mcqs Average Mcqs Basic Maths Mcqs Mathematics Mcqs 26 Comments

The average of first ten prime numbers which are odd is____________?

A. 12.9
B. 13.8
C. 15.8
D. 17

Explained by: M. Zeeshan Saleem

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Hi Friend !!!

Here is your answer !!!

The odd primes :-

3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 , 29 , 31

Average = 3+5+7+11+13+17+19+23+29+31/10

= 158/10

= 15.8

Hope it helps u 🙂

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26 Comments

Monsif on 04/09/2019 2:06 PM
the answer is 15.3 as
3+5+7+11+13+17+21+23+29+31= 153
153/10= 15.3
Reply
- admin on 21/10/2019 7:27 PM
  Please count them again its 158/10
  Reply
irum kaosar on 08/09/2019 10:07 PM
the correct answer is 12.9
Reply
- admin on 21/10/2019 7:26 PM
  How ? can you explain it ?
  Reply
M. Zeeshan Saleem on 21/10/2019 1:24 AM
Hi Friend !!!
Here is your answer !!!
The odd primes :-
3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 , 29 , 31
Average = 3+5+7+11+13+17+19+23+29+31/10
= 158/10
= 15.8
Hope it helps u 🙂
Reply
- admin on 21/10/2019 7:20 PM
  Thanks dear Zeeshan for adding explanation.
  Reply

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