A man took loan from a bank at the rate of 12% p.a. S.I. After 20 years he had to pay Rs. 1500 interest only for the period. The principal amount borrowed by him was?	Choose the correct answer.
A) 625	B) 700	C) 950	D) 825	E) 630

Rationale: principal = ( 100 * 1500 ) / ( 12 * 20 ) = rs . 625 answer : a
Answer: A