A group of boy scouts and girls scouts is going on a rafting trip. 52% of the scouts arrived with signed permission slips. If 40% of the scouts were boy scouts and 62.5% of the boy scouts arrived with signed permission slips, then what percentage of the children were girl scouts who arrived with signed permission slips? Pick one
A) 27
B) 28
C) 29
D) 30
E) 31
We don't know how many scouts went on the trip, so let's assume 100 scouts went on the trip (since we only are concerned with percents in the answer)   40% were boy scouts so 40% of 100 = 40 were boy scouts   62.5% of the boy scouts brought their permission slips signed, so  .625*40= 
<gadget id="calculator"> .625*40</gadget>
<output>25</output>
25 boy scouts had signed slips   15 boy scouts did not   52% of all the scouts had signed slips, so  .52*100= 
<gadget id="calculator"> .52*100</gadget>
<output>52</output>
52 in total had signed slips   thus  52 - 25= 
<gadget id="calculator"> 52 - 25</gadget>
<output>27</output>
27 girl scouts had signed slips   thus the percentage of scouts who were girl scouts arriving with signed permission slips is  27/100= 
<gadget id="calculator"> 27/100</gadget>
<output>27/100 = around 0.27</output>
.27= 27%   27
<result>A</result>
A group of boy scouts and girls scouts is going on a rafting trip. 52% of the scouts arrived with signed permission slips. If 40% of the scouts were boy scouts and 62.5% of the boy scouts arrived with signed permission slips, then what percentage of the children were girl scouts who arrived with signed permission slips?