If each of 4 subsidiaries of Corporation R has been granted a line of credit of $791,000 and each of the other 3 subsidiaries of Corporation R has been granted a line of credit of $112,000, what is the average (arithmetic mean) line of credit granted to a subsidiary of Corporation R?  Pick one
A) $500,000  B) $448,000  C) $406,000  D) $313,600  E) $116,000
My take is A.   (791000*4 + 112000*3)/7= 
<gadget id="calculator">(791000*4 + 112000*3)/7</gadget>
<output>500_000</output>
500000
<result>A</result>
If each of 4 subsidiaries of Corporation R has been granted a line of credit of $791,000 and each of the other 3 subsidiaries of Corporation R has been granted a line of credit of $112,000, what is the average (arithmetic mean) line of credit granted to a subsidiary of Corporation R?