Find the average of first 32 natural numbers.
Choices.
A) A)12.6
B) B)16.5
C) C)15.9
D) D)17.5
E) E)20.6
Sum of first n natural numbers = n(n+1)/2   sum of first 32 natural numbers = 32*33/2= 
<gadget id="calculator">32*33/2</gadget>
<output>528</output>
528   average= 528/32= 
<gadget id="calculator">528/32</gadget>
<output>33/2 = around 16.5</output>
16.5   Answer is 16.5
<result>B</result>
Find the average of first 32 natural numbers.