Question 1178425
<pre>
SOLUTION     PERCENT CONC      VOLUME      PURE ALC.(in milliliters)
   A            16              b-400      0.16(b-400)
   B            20               b         0.2b
 Mxture                                   152
</pre>
{{{0.16(b-400)+0.2b=152}}}, solve this for b.