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

/ By / FBR Inspector inland revenue past papers
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A) 37

B) 37.8

C) 39

D) 39.8

Solution:

All prime numbers between 30 and 50 is 31, 37 , 41 , 43, 47.

Average = 31+37+41+43+47/5

= 199/5= 39.8

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