a sum of 15,600 amounts to 21,200 in 5 years at the rate of simple interest . what is the rate of interest ?
"c 7 % s . i . = ( 21200 - 15600 ) = 5600 . rate = ( 100 x 5600 ) / ( 15600 x 5 ) % = 7 %"
multiply(divide(divide(const_3, const_4.0), add(multiply(const_3, const_4), add(const_0_25, const_0_25))), const_100)