If a sum of ₹5,000 is taken at a simple rate of interest of 15% per annum for 3 years and another sum of ₹8,000 is taken at a simple interest of 12% per annum for 4 years, the positive difference of the interests paid is:

A.

₹1,643

B.

₹1,590

C.

₹1,286

D.

₹1,378

Solution:

-