Indu gave Bindu Rs.6500 on compound interest for 2 years at 4% per annum. How much loss would Indu has suffered had she given it to Bindu for 2 years at 4% per annum simple interest? Pick one
A) 12.8
B) 20
C) 10.4
D) 11.6
E) 15

Rationale: "6500 = d ( 100 / 4 ) 2 d = 10.4 answer : c"
Answer: C