a sum of 11,500 amounts to 13,500 in 5 years at the rate of simple interest . what is the rate of interest ?
"b 3 % s . i . = ( 13500 - 11500 ) = 2000 . rate = ( 100 x 2000 ) / ( 11500 x 5 ) % = 3 %"
multiply(divide(divide(const_3, 5), add(multiply(const_3, 5), add(const_0_25, const_0_25))), const_100)