a sum fetched a total simple interest of $ 4151.25 at the rate of 9 p . c . p . a . in 5 years . what is the sum ?
"e 8928 principal = $ 100 x 4151.25 / 9 x 5 = $ 415125 / 45 = $ 8928 ."
divide(divide(multiply(4151.25, const_100), 9), 5)