<human>:  A stickler for health, Octavia drinks half the daily recommended cups of coffee. By contract, Octavia’s husband Juan drinks 10 times the amount of coffee she drinks. Juan’s doctor has asked him to reduce his coffee intake to the daily recommendation of 4 cups. By how many cups must Juan reduce his daily coffee intake?
<bot>: How many cups of coffee does Octavia drink? ** Since the daily recommendation is 4 cups of coffee, Octavia drinks 4/2 = <<4/2=2>>2 cups
How many cups of coffee does Juan drink? ** Juan drinks 10 times the amount of coffee Octavia drinks, which translates to 10 * 2 = <<10*2=20>>20 cups
How many cups of coffee does Juan drink after reducing his coffee intake? ** Subtracting the daily recommended amount from Juan’s current coffee intake gives 20 - 4 = <<20-4=16>>16 cups
How many cups of coffee must Juan reduce his daily coffee intake by? ** Juan must therefore reduce his daily coffee intake by 16 cups
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