The three caravans used up 3x2= <<3*2=6>>6 parking spaces in the parking lot.

Therefore, 30-6= <<30-6=24>>24 vehicles can still park in the parking lot.

# Answer

24
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
There are 30 spaces for each vehicle in a parking lot. A caravan takes up a total of 2 spaces of parking space. How many vehicles can still park if there are 3 caravans currently parking?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
24
There are 30 spaces for each vehicle in a parking lot. A caravan takes up a total of 2 spaces of parking space. How many vehicles can still park if there are 3 caravans currently parking?
train