In what ratio should a 20% methyl alcohol solution be mixed with a 50% methyl alcohol solution so that the resultant solution has 40% methyl alcohol in it?	Pick.
A) 1 : 3  B) 1 : 2  C) 2 : 3  D) 2 : 1  E) 3 : 1
TWO things to remember:-   1) the ratio of quantity mixed to get an average is related to the ratio of each qty's distance from average.   2) More the Qty of x from that of y, More CLOSER will be average to x..   Qty of 20%/Qty of 50%= (50−40)/(40−20)=1/2=1:2   ANSWER:1 : 2
<result>B</result>
In what ratio should a 20% methyl alcohol solution be mixed with a 50% methyl alcohol solution so that the resultant solution has 40% methyl alcohol in it?