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:
-