He makes it in batches of 1.5*128=<<1.5*128=192>>192 ounces

He drinks 96/2=<<96/2=48>>48 ounces of coffee a day

So he drinks the coffee in 192/48=<<192/48=4>>4 days

So in 24 days he makes 24/4=<<24/4=6>>6 batches

That means he spends 6*20=<<6*20=120>>120 hours making coffee

# Answer

120
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jack makes his own cold brew coffee.  He makes it in batches of 1.5 gallons.  He drinks 96 ounces of coffee every 2 days.  It takes 20 hours to make coffee.  How long does he spend making coffee over 24 days?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
120
Jack makes his own cold brew coffee.  He makes it in batches of 1.5 gallons.  He drinks 96 ounces of coffee every 2 days.  It takes 20 hours to make coffee.  How long does he spend making coffee over 24 days?
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