The average of first 20 natural numbers is?	Choose the correct choice from the following options
A) 10.6
B) 10.5
C) 10.9
D) 15.4
E) 15.1
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?