Rob has 40/5=<<40/5=8>>8 doubles baseball cards.

Rob has 8*3=<<8*3=24>>24 baseball cards.

# Answer

24
<|im_start|>system
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<|im_start|>user
Rob has some 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. If Jess has 40 doubles baseball cards, how many baseball cards does Rob have?
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<|im_start|>assistant

user
24
Rob has some 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. If Jess has 40 doubles baseball cards, how many baseball cards does Rob have?
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