Find the average of first 10 natural numbers.	Choices
A) A)10.5	B) B)9.9	C) C)7.5	D) D)6.6	E) E)5.5
Sum of first n natural numbers = n(n+1)/2   sum of first 10 natural numbers = 10*11/2= 
<gadget id="calculator">10*11/2</gadget>
<output>55</output>
55   average= 55/10= 
<gadget id="calculator">55/10</gadget>
<output>11/2 = around 5.5</output>
5.5   Answer is 5.5
<result>E</result>
Find the average of first 10 natural numbers.