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Question
The average of first ten prime numbers which are odd is____________?
Options:
A .  12.9
B .  13.8
C .  15.8
D .  17
Answer: Option C
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

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