100亩地，建17层的住宅楼，总建筑面积能达到多少啊？

100亩地，建17层的住宅楼，容积率2.5，总建筑面积多少啊？容积率2.7，总建筑面积多少啊？大神给算算吧file:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\E9BIPM$_`9}`VS07`VD9H1F.giffile:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\E9BIPM$_`9}`VS07`VD9H1F.giffile:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\E9BIPM$_`9}`VS07`VD9H1F.giffile:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\E9BIPM$_`9}`VS07`VD9H1F.giffile:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\E9BIPM$_`9}`VS07`VD9H1F.gif