The average of first 20 natural numbers is?  Choose the most appropriate option:
A) 5.6	B) 10.5	C) 10.1	D) 5.8	E) 5.2
Sum of 20 natural no.   = 420/2= 
<gadget id="calculator">420/2</gadget>
<output>210</output>
210   Average= 210/20= 
<gadget id="calculator">210/20</gadget>
<output>21/2 = around 10.5</output>
10.5   Answer:10.5
<result>B</result>
The average of first 20 natural numbers is?