If Jess has 40 double baseball cards, and she has 5 times as many doubles as Rob, then Rob has 40/5 = 8 double baseball cards.
If one-third of Rob's cards are doubles, then he has 8 / (1/3) = 24 baseball cards in total.
#### 24
The answer is: 24
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
If Jess has 40 double baseball cards and she has 5 times as many doubles as Rob, and one-third of Rob's cards are doubles, how many baseball cards does Rob have in total?

### Answer:
