The average of first three prime numbers greater than 5 is? Options.
A) 12.6 B) 12.9 C) 22.3 D) 10.3 E) 12.7
7 + 11+ 13= 
<gadget id="calculator">7 + 11+ 13</gadget>
<output>31</output>
31/3= 10.3   Answer: 10.3
<result>D</result>
The average of first three prime numbers greater than 5 is?