He spends 20/8=<<20/8=2.5>>2.5 minutes each time he goes in

So it would take 2.5*6=<<2.5*6=15>>15 minutes to go 6 times

# Answer

15
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
It takes 20 minutes for John to go to the bathroom 8 times.  How long would it take to go 6 times?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
15
It takes 20 minutes for John to go to the bathroom 8 times.  How long would it take to go 6 times?
train