A chemist has three different acid solutions. The first acid solution contains 25 % acid, the second contains 40 % and the third contains 70 % . They want to use all three solutions to obtain a mixture of 189 liters containing 35 % acid, using 2 times as much of the 70 % solution as the 40 % solution. How many liters of each solution should be used? The chemist should use liters of 25 % solution, liters of 40 % solution, and liters of 70 % solution