Rob has 24 baseball cards, and a few are doubles. One third of Rob's cards are doubles, and Jess has 5 times as many doubles as Rob. How many doubles baseball cards does Jess have?
How many doubles baseball cards does Rob have? ** Rob has 24/3=<<24/3=8>>8 doubles baseball cards.
How many doubles baseball cards does Jess have? ** Jess has 8*5=<<8*5=40>>40 doubles baseball cards.
#### 40