Correct Answer: None of these
Explanation:
Let breadth = b meters. Then, length = 4b/3 meters. ∵ b x 4b/3 = 300⇒ b2 = 300 x 3/4 ⇒ b2 = 225 ∴ b = 15Hence, required difference = [(Length) - (Breadth) ] = 4b/3 - b = b/3 = 15/3 m = 5 m