Find the average of the series : 312, 162, 132, 142 and 122? Select:	A) 178	B) 172	C) 128	D) 107	E) 174
Average   = (312 + 162 + 132 + 142 + 122)/5   = 870/5= 
<gadget id="calculator">870/5</gadget>
<output>174</output>
174   Answer: 174
<result>E</result>
Find the average of the series : 312, 162, 132, 142 and 122?