A. 15m B. 4m C. 3m D. None of these Explanation:Advertisement Breadth = x meters Length = ( 4/3 x) m X × 4/3 x = 300 or x2 = 300 × 3/4 = 225 or x =15 Hence, [(Length) – (breadth)] = ( 4/3 x-x) = 1/3 x => ( 1/3×15) m = 5 m Advertisement