Pre-bought: 20 people * $155 = $<<20*155=3100>>3100

Gate bought: 30 people * $200 = $<<30*200=6000>>6000 $6000 - $3100 = $<<6000-3100=2900>>2900

The passengers that paid at the gate paid $2900 more dollars than those who pre-bought their tickets.

# Answer

2900
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Twenty people pre-bought plane tickets at a price of $155 per ticket. Thirty people bought their plane tickets at the gate and they each paid $200 for their ticket. How many more dollars did the people at the gate pay for their tickets than those passengers that pre-bought their tickets?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2900
Twenty people pre-bought plane tickets at a price of $155 per ticket. Thirty people bought their plane tickets at the gate and they each paid $200 for their ticket. How many more dollars did the people at the gate pay for their tickets than those passengers that pre-bought their tickets?
train