He produces 5*20=<<5*20=100>>100 liters of honey

That means he keeps 100/2=<<100/2=50>>50 liters of honey

So he needs 50/.5=<<50/.5=100>>100 jars

# Answer

100
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
James buys jars for his honey.  He has 5 hives that each produce 20 liters of honey.  Each jar can hold .5 liters.  How many jars will he need to buy if his friend is bringing his own jars for half the honey?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
100
James buys jars for his honey.  He has 5 hives that each produce 20 liters of honey.  Each jar can hold .5 liters.  How many jars will he need to buy if his friend is bringing his own jars for half the honey?
train