The average of first five multiples of 7 is	Choose one:  A) 21  B) 6  C) 9  D) 12  E) 15
Solution   Average	= 7(1+2+3+4+5) / 5   = 105 / 5.= 
<gadget id="calculator">105 / 5.</gadget>
<output>21</output>
21   21nswer 21
<result>A</result>
The average of first five multiples of 7 is