EXHIBIT 11 (a) Computation of Earnings Per Common Share Three Months Ended Nine Months Ended ------------------ ----------------- February 28 February 28 ----------- ----------- 1998 1997 1998 1997 ---- ---- ---- ---- Net Income $891,025 $707,544 $2,409,230 $1,685,563 Weighted average number of Common Shares outstanding 2,620,950 2,589,305 2,602,633 2,596,914 Basic EPS $.34 $.27 $.93 $.65 Assuming exercise of options reduced by the number of shares which could have been purchased with the proceeds from exercise of such options 221,185 201,411 221,185 201,411 --------- --------- --------- --------- Weighted average Common Shares outstanding and Common Share equivalents 2,842,135 2,790,716 2,823,818 2,798,325 --------- --------- --------- --------- --------- --------- --------- --------- Diluted EPS $ .31 $ .25 $ .85 $ .60 REPORTS ON FORM 8-K None. 11