a fellow borrowed a certain sum of money at 3 % per annum at simple interest and in 3 years the interest amounted to rs . 1820 less than the sum lent . what was the sum lent ?
"p - 1820 = ( p * 3 * 3 ) / 100 p = 2000 answer : d"
divide(1820, subtract(const_1, divide(multiply(3, 3), const_100)))