at what rate percent of simple interest will a sum of money double itself in 22 years ?
"let sum = x . then , s . i . = x . rate = ( 100 * s . i . ) / ( p * t ) = ( 100 * x ) / ( x * 22 ) = 100 / 22 = 4.54 % answer : b"
divide(const_100, 22)