some of the 50 % solution of acid was removed and this was replaced with an equal amount of 14 % solution of acid . as a result , a 23 % solution of acid was obtained . what fraction of the original solution was replaced ?
"let x be the fraction of the original solution that was replaced . 0.5 * ( 1 - x ) + 0.14 ( x ) = 0.23 0.36 x = 0.27 x = 3 / 4 the answer is d ."
divide(23, add(50, 14))