If 55 percent of congress are Democrats and the rest are Republicans. In a vote on a new law , if 40 percent of the members who are Democrats and 20 percent of the members who are Republicans are expected to vote for the new law , what percent of the members are expected to vote for the new law ? Choose the correct choice from the following options.
A) 30%
B) 31%
C) 33%
D) 35%
E) 39%
Say there are total of 100 members in the congress . Thus 55 are Democrats and 45 are Republicans.   55*0.4= 
<gadget id="calculator">55*0.4</gadget>
<output>22</output>
22 Democrats are expected to vote for the new law ;    45*0.20= 
<gadget id="calculator"> 45*0.20</gadget>
<output>9</output>
9 Republicans are expected to vote for the new law.   Thus total of   22+9= 
<gadget id="calculator">  22+9</gadget>
<output>31</output>
31 members are expected to vote for the new law, which is 31% of the total number of congress members .   Answer: 31%.
<result>B</result>
If 55 percent of congress are Democrats and the rest are Republicans. In a vote on a new law , if 40 percent of the members who are Democrats and 20 percent of the members who are Republicans are expected to vote for the new law , what percent of the members are expected to vote for the new law ?