The length of a hall is (4/3) times its breadth. If the area of the hall be 300 square meters the difference between the length and breadth is__________?

A. 15m
B. 4m
C. 3m
D. None of these
Explanation:
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