Between Shop A and Shop B he buys 150 bottles+180 bottles=<<150+180=330>>330 bottles

Thus he can buy 550 bottles-330 bottles=<<550-330=220>>220 bottles from shop C

# Answer

220
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Don buys recyclable bottles in a small town. Shop A normally sells him 150 bottles, shop B sells him 180 bottles and Shop C sells him the rest. How many bottles does Don buy from Shop C if he is capable of buying only 550 bottles?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
220
Don buys recyclable bottles in a small town. Shop A normally sells him 150 bottles, shop B sells him 180 bottles and Shop C sells him the rest. How many bottles does Don buy from Shop C if he is capable of buying only 550 bottles?
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