There are 5 people sitting around the dinner table. Each person has 2/10 of a pie on their plate. How much pie is left? Explain

Well, 2/10 times 5 is 1; therefore, there will no more pie left because it has already been dispersed completely.

However, if this is a trick question, there is 100% of the pie left because even though it is on their plate, they haven't eaten it. If its not a trick question, ignore this.