conversations.from: human
conversations.value: Find the answer to the math problem: Marco owns an ice cream truck.  His ice cream cones are $5 each.  If his expenses are 80% of total sales for the day, how many ice cream cones would he need to sell to make a $200 profit for the day?
conversations.from: assistant
conversations.value: His expenses are 80/100 = 4/5.
  His profit would be 20/100 = 1/5.
  Total sales for the day is $200 x 5 = $1000.
  Total ice cream cones he sells is $1000 / 5 = 200.