The circulation for magazine X in 1981 was 5 times the average (arithmetic mean) yearly circulation for magazine X for the years 1982-1990. What is the ratio of the circulation in 1981 to the total circulation during 1981-1990 for magazine X ? Choose the correct answer:
A) 1/5 B) 1/4 C) 5/14 D) 5/9 E) 5/6
There are 9 years from 1982-1990, inclusive. Let's say the average circulation every year between 1982-1990 inclusive is x.   So the total circulation is 9x from 1982-1990, inclusive.   In 1981, the circulation is 5x.   So total circulation for 1981-1990 is 5x + 9x = 14x.   Ratio of circulation in 1981 to total circulation during 1981-1990 is 5x to 14x or 5/14.   ANSWER:5/14 5  + 9= 
<gadget id="calculator"> 5  + 9</gadget>
<output>14</output>
14x.   Ratio of circulation in 1981 to total circulation during 1981-1990 is 5x to 14x or 5/14.   ANSWER:5/14
<result>C</result>
The circulation for magazine X in 1981 was 5 times the average (arithmetic mean) yearly circulation for magazine X for the years 1982-1990. What is the ratio of the circulation in 1981 to the total circulation during 1981-1990 for magazine X ?