A man took a loan at rate of 12% per annum simple interest. After 3 years he had to pay 7200 interest. The principal amount borrowed by him was. Pick:
A) Rs 14000  B) Rs 15000  C) Rs 16000  D) Rs 20000  E) None of these
Explanation:   S.I.=Pâˆ—Râˆ—T/100   =&gt;P=S.I.âˆ—100/Râˆ—T   =&gt;P=7200âˆ—100/12âˆ—3=Rs 20000   Option Rs 20000
<result>D</result>
A man took a loan at rate of 12% per annum simple interest. After 3 years he had to pay 7200 interest. The principal amount borrowed by him was.