A man took a loan at rate of 12% per annum simple interest. After 3 years he had to pay 9000 interest. The principal amount borrowed by him was. Choose the correct choice from the following
A) rs 14000
B) rs 25000
C) rs 16000
D) rs 17000
E) none of these

Rationale: explanation : s . i . = p â ˆ — r â ˆ — t / 100 = > p = s . i . â ˆ — 100 / r â ˆ — t = > p = 9000 â ˆ — 100 / 12 â ˆ — 3 = rs 25000 option b
Answer: B