During a sale, a store sells 20 percent of its remaining stock each day, without replenishment. After four days, what fraction of its original stock has it sold?	Choose the correct choice from the following answers:
A) 1/625	B) 256/625	C) 61/125	D) 64/125	E) 369/625
Let's pick a smart number for the initial amount. The store sold 20 percent each day, hmm, after looking at the answer choices 625 is used pretty often, so let's pick it.   1st day: 125 items sold, 500 left   2nd day: 100 items sold, 400 left   3rd day: 80 sold, 320 left   4th day: 64 sold, 256 left   Sum The Sold Items=125+100+80+64= 
<gadget id="calculator">125+100+80+64</gadget>
<output>369</output>
369−−&gt;369/625   Answer 369/625
<result>E</result>
During a sale, a store sells 20 percent of its remaining stock each day, without replenishment. After four days, what fraction of its original stock has it sold?