"achieved an average of" is correct and can be used in written English.
For example, "She achieved an average of 90% on her math exams."
Released on an optimistic 126 screens, the film achieved an average of just £600 thanks to its weekend gross of £76,000.
A commonsense view of Electra's performance is surely this: the fund aims for a 10%-15 10%-15n on equity a year and has achieved an average of 14% overeturnlast decade.
For example, Gravity, which is above it in the chart, achieved an average of £4,360, but that would be from a typical 12 showings, four a day, across the three-day weekend.
The email said Apple monitored the hours of more than 1 million workers in its factories, and that the facilities achieved an average of 93% compliance with 60-hour working-week limits.
Since Biden has achieved an average of 1% support in three polls – even though he isn't a declared candidate – CNN said he needed only to file the necessary paperwork or say he will that day to be in the debate.
In soliciting potential investors, Mr. Yagalla portrayed himself "as a successful trader and has boasted that, by trading securities over the last nine years, he has achieved an average of 80percentt return on his investments," the S.E.C. said in a statement.
Light trucks -- a category that includes sport utility vehicles, pickup trucks and minivans -- must achieve an average of 20.7 miles a gallon.
In Europe, where gasoline now costs more than $4 a gallon, the cars, mostly small, achieve an average of close to 35 miles per gallon.
The new rules would extend and broaden the existing CAFE rules, which require new cars and trucks to achieve an average of 34 miles per gallon by 2016.
The three-week series began with 1.1 million viewers and has grown steadily - if slowly - to achieve an average of 1.4 million last night, a 9% share of the audience in its 10pm slot.
