During a certain week, a seal ate 55% 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?  Choose the correct answer:
A) 32
B) 40
C) 55
D) 64
E) 80
Total smelt = x.   Then, 0.55*80+0.3(x-80)=0.4*x --&gt; x=200 --&gt; 0.4*x=80.   Answer: 80.
<result>E</result>
During a certain week, a seal ate 55% 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?