16
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the mean of 8, 12, 16, 20 and 24?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
16
What is the mean of 8, 12, 16, 20 and 24?
train