human
At a people counting station, the number of people counted on the first day was twice the total number counted on the second day. If 500 people were counted on the second day, how many people were counted on the two days?
assistant
How many people were counted on the first day? ** There were 2*500 = <<2*500=1000>>1000 people at the counting station who were counted on the first day.
How many people were counted on the two days? ** In the two days, 1000+500 = <<1000+500=1500>>1500 were counted at the station.
#### 1500