QuesTech Inc. and Subsidiaries Exhibit (11) - Statement Re: Computation of Earnings Per Share Three Months Ended Nine Months Ended September 30 September 30 1997 1996 1997 1996 Primary: Average Shares Outstanding 1,434,726 1,347,722 1,434,726 1,351,274 Net effect of dilutive stock options-based on the treasury stock method using average market price 83,152 91,329 76,214 132,847 Increase in outstanding shares 4,913 75,702 3,609 32,125 Weighted Average Number of Shares 1,522,791 1,514,753 1,514,549 1,516,246 Net Income $121,600 $114,000 $410,900 $392,600 Earnings per share, primary $0.08 $0.08 $0.27 $0.26 Fully diluted: Average Shares Outstanding 1,434,726 1,347,722 1,434,726 1,351,274 Net effect of dilutive stock options-based on the treasury stock method using average market price 83,152 94,322 98,026 136,143 Increase in outstanding shares 4,913 75,702 3,609 32,125 Totals 1,522,791 1,517,746 1,536,361 1,519,542 Net Income $121,600 $114,000 $121,600 $392,600 Earnings per share, fully diluted $0.08 $0.08 $0.27 $0.26