The total height of three trees is 11 m Tree tree B, and tree B is half as tall as tree C How tall is tree A

{ The total height of 3 trees is 11m. Tree B, and Tree A (?) is half as tall as Tree C. How tall is Tree A? Sorry, i tried typing it out myself because i didnt understand what you meant when you typed that out ...; / }

BUT. If the total height is 11, and Tree A is half of tree C. Then so Tree A is 5.5, because half of 11 is 5.5.