Question 1157405
<br>
A quick and easy non-algebraic way to solve 2-part mixture problems like this:<br>
(1) 36% is 26/30 of the way from 10% to 40%  (from 10 to 40 is 30; from 10 to 36 is 26...)
(2) That means 26/30 of the mixture has to be the 40% solution<br>
Since he is making 60 liters of the mixture, he needs 26/30 of 60 liters, or 52 liters, of the 40% solution; the other 8 liters are the 10% solution.<br>
CHECK:
.40(52)+.10(8) = 20.8+0.8 = 21.6
.36(60) = 21.6<br>