Find the average of first 60 natural numbers.  Select the correct option.
A) 20.5	B) 18	C) 30.5	D) 19	E) 17
Exp. Sum of first n natural numbers = n( n+1)/2   So, sum of first 60 natural numbers = 60*61/2= 
<gadget id="calculator">60*61/2</gadget>
<output>1_830</output>
1830   Required average=1830/60= 
<gadget id="calculator">1830/60</gadget>
<output>61/2 = around 30.5</output>
30.5   Answer:30.5
<result>C</result>
Find the average of first 60 natural numbers.