correct answer is: a) ₹530 & ₹3180

Explanation
Here,
P = ₹2650
R = 8 %
T =2\frac{1}{2} years or \frac{5}{2} years
We know, SI =\frac{P\times R\times T}{100}
\therefore SI =₹\left(\frac{2650\times8\times5}{2\times100}\right)
\rightarrow SI =\ ₹530
\therefore Simple interest = ₹530
We also know,
Amount\ =\ (Principle\ +\ Simple\ Interest)
\therefore Amount =₹2650+₹530
\rightarrow Amount =₹3180
Ans: SI = ₹530 and Amount = ₹3180.