During a certain week, a seal ate 45% 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?  Options: A) 32 B) 48 C) 55 D) 64 E) 80
Total smelt = x.   Then, 0.45*80+0.3(x-80)=0.4*x --&gt; x=120 --&gt; 0.4*x=48.   Answer: 48.
<result>B</result>
During a certain week, a seal ate 45% 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?