He has 20/2=<<20/2=10>>10 black socks

So he has 20+10=<<20+10=30>>30 black and red socks

So he has 30*2=<<30*2=60>>60 white socks

So he has 60+30=<<60+30=90>>90 total socks

# Answer

90
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
James has 20 pairs of red socks and half as many black socks.  He has twice as many white socks as red and black combined.  How many total socks does he have combined?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
90
James has 20 pairs of red socks and half as many black socks.  He has twice as many white socks as red and black combined.  How many total socks does he have combined?
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