The average of first 50 non-zero positive integers is  Choose the correct choice from the following.
A) 11.5	B) 25.5	C) 22	D) 25	E) 27
Explanation :   Sum of first n non-zero positive integers n(n + 1)/2   So, average of first n non-zero positive integers n(n + 1)/2n = (n + 1)/2   =&gt; (50 + 1)/2= 
<gadget id="calculator">(50 + 1)/2</gadget>
<output>51/2 = around 25.5</output>
25.5   Answer : 25.5
<result>B</result>
The average of first 50 non-zero positive integers is