A sum of Rs. 2600 is invested at two different rates of interest. The difference between the simple interests got after 4 years is Rs 402.80 at these two rates, what is the difference between the rates of interest?

A sum of Rs. 2600 is invested at two different rates of interest. The

1.	A sum of Rs. 2600 is invested at two different rates of interest. The difference between the simple interests got after 4 years is Rs 402.80 at these two rates, what is the difference between the rates of interest?
A.	1.58
B.	2.63
C.	3.87
D.	4.02
Answer» D. 4.02