A man took a loan at rate of 12% per annum simple interest. After 3 years he had to pay 6480 interest. The principal amount borrowed by him was.	Choose the correct choice from the following answers
A) Rs 14000  B) Rs 15000  C) Rs 16000  D) Rs 18000  E) None of these
Explanation:   S.I.=Pâˆ—Râˆ—T/100   =&gt;P=S.I.âˆ—100/Râˆ—T   =&gt;P=6480âˆ—100/12âˆ—3=Rs18000   Option Rs 18000
<result>D</result>
A man took a loan at rate of 12% per annum simple interest. After 3 years he had to pay 6480 interest. The principal amount borrowed by him was.