1 hour is 60 minutes, so 120 minutes is 120 / 60 = <<120/60=2>>2 hours.

During one hour a fox can make 50 kilometers, so during two hours, he would be able to run 50 * 2 = <<50*2=100>>100 kilometers.

# Answer

100
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A fox can run at the maximum speed of 50 kilometers per hour. Considering the fox would run at a constant speed, what distance would he make during 120 minutes?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
100
A fox can run at the maximum speed of 50 kilometers per hour. Considering the fox would run at a constant speed, what distance would he make during 120 minutes?
train