A kilogram of chicken costs $6 - $2 = $<<6-2=4>>4.

Three kilograms of chicken cost $4 x 3 = $<<4*3=12>>12.

So, a 3-kilogram of chicken and a kilogram of pork cost $12 + $6 = $18.

# Answer

18
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A kilogram of pork costs $6 while a kilogram of chicken costs $2 less. How much will a 3-kilogram of chicken and a kilogram of pork cost?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
18
A kilogram of pork costs $6 while a kilogram of chicken costs $2 less. How much will a 3-kilogram of chicken and a kilogram of pork cost?
train