In a day, John uses 75x 8 = <<75*8=600>>600 watts.

So in a month, he uses 600 x 30 = 18 000 watts.

Since there are 1000 watts in 1 kilowatt, then John uses 18000/1000 = <<18000/1000=18>>18.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
John uses a 75-watt electric fan for 8 hours a day. How much kWh of electric energy does he consume per month (30 days) for using the electric fan?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
18
John uses a 75-watt electric fan for 8 hours a day. How much kWh of electric energy does he consume per month (30 days) for using the electric fan?
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