EXHIBIT 11 QuesTech, Inc. COMPUTATION OF EARNINGS PER SHARE (UNAUDITED) Three Months Ended March 31 1997 1996 Net earnings ................................. $ 121,600 $ 110,700 Primary earnings: Shares Weighted average number of common shares outstanding .............. 1,612,993 1,536,461 Common stock equivalents ................. 70,985 158,387 SECT shares, weighted .................... <176,131> <178,141> Weighted average number of common shares outstanding as adjusted .. 1,507,847 1,516,707 Primary earnings per share ................... $.08 $.07 Fully Diluted earnings: Shares Weighted average number of common shares outstanding .............. 1,612,993 1,536,461 Common stock equivalents ................. 72,748 158,188 SECT shares, weighted .................... <176,131> <178,141> Weighted average number of common shares outstanding as adjusted .. 1,509,610 1,516,508 Fully diluted earnings per share ............. $.08 $.07