Marco loves trading cards. He has a total of 500 cards on hand, and a fourth of them are duplicates. Marco decides to trade one-fifth of these duplicates for completely new cards to his friend Josh. How many new cards did Marco get?
Marco has 500*0.25=<<500*0.25=125>>125 duplicate trading cards.
He wants to trade off 125*0.2=<<125*0.2=25>>25 cards for new ones.
#### 25