The average of the first five multiples of 9 is:  Pick
A) 20	B) 27	C) 28	D) 30	E) None of these
Solution: Required average = (total sum of multiple of 9)/5   = (9+18+27+36+45)/5= 
<gadget id="calculator">(9+18+27+36+45)/5</gadget>
<output>27</output>
27   Note that, average of 9 and 45 is also 27.   And average of 18 and 36 is also 27.   Answer: Option 27
<result>B</result>
The average of the first five multiples of 9 is: