conversations.from: human
conversations.value: There were 600 cookies in a box. Nicole ate 2/5 of the total number of cookies, while Eduardo ate 3/5 of the remaining amount. What percentage of the original cookies remained?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Nicole ate 2/5 of the total number of cookies, which is 2/5*600= 240
  The total number of cookies that remained in the box after Nicole ate 240 is 600-240 = 360
  Eduardo then ate 3/5 of the remaining cookies, a total of 3/5*360 = 216 cookies
  The total number of cookies that remained after Eduardo ate 216 is 360 - 216 = 144
  The percentage of the cookies that remained out of the original amount is 144/600*100% = 24%