A glass is filled with 6 x 4/5 = 24/5 ounces of water.

So, 10 6-ounces of glasses contains a total of 24/5 x 10 = <<24/5*10=48>>48 ounces of water.

To fill the 10 glasses to the brim, 10 x 6 = <<10*6=60>>60 ounces of water are needed.

Hence, 60 - 48 = <<60-48=12>>12 ounces of water are still needed.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
There are 10 6-ounces of glasses that are only 4/5 full of water. How many ounces of water are needed to fill to the brim all those 10 glasses?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
12
There are 10 6-ounces of glasses that are only 4/5 full of water. How many ounces of water are needed to fill to the brim all those 10 glasses?
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