During a certain week, a seal ate 60% of the first 80 smelt it came across, and 30% of the remaining smelt it came across. If the seal ate 40% of the smelt it came across during the entire week, how many smelt did it eat? Choices
A) 32  B) 40  C) 55  D) 64  E) 96
Total smelt = x.   Then, 0.6*80+0.3(x-80)=0.4*x --&gt; x=240 --&gt; 0.4*x=96.   Answer: 96.
<result>E</result>
During a certain week, a seal ate 60% of the first 80 smelt it came across, and 30% of the remaining smelt it came across. If the seal ate 40% of the smelt it came across during the entire week, how many smelt did it eat?