Company Z spent 1/4 of its revenues last year on marketing and 1/7 of the remainder on maintenance of its facilities. What fraction of last year’s original revenues did company Z have left after its marketing and maintenance expenditures?	Choose the correct choice from the following answers:
A) 5/14 B) 1/2 C) 17/28 D) 9/14 E) 9/11
Total revenues = x   Spent on marketing = x/4   Remaining amount = x-x/4 = 3x/4   1/7 of the remainder on maintenance of its facilities = 3x/4*1/7 = 3x/28   Amount left = 3x/4-3x/28 = 9x/14   Answer 9/14
<result>D</result>
Company Z spent 1/4 of its revenues last year on marketing and 1/7 of the remainder on maintenance of its facilities. What fraction of last year’s original revenues did company Z have left after its marketing and maintenance expenditures?