The average of first 18 natural numbers is?  Select:
A) 5.6	B) 9.5	C) 9.1	D) 9.8	E) 5.2
Sum of 18 natural no.   = 342/2= 
<gadget id="calculator">342/2</gadget>
<output>171</output>
171   Average= 171/18= 
<gadget id="calculator">171/18</gadget>
<output>19/2 = around 9.5</output>
9.5   Answer:9.5
<result>B</result>
The average of first 18 natural numbers is?