A sum of Rs. 50,250 is divided into two parts such that the simple interest on the first part for \(7\frac{1}{2} \)years at \(8\frac{1}{3} \)% p.a. is \(\frac{5}{2} \) times the simple interest on the second part for \(5\frac{1}{4} \)years at 8% p.a. What is the difference (in Rs.) between the two parts?