<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 Colston's teacher has a thermos that she fills with coffee and 1/2 cup of milk. She does this twice a day for a five-day school week. After learning how much coffee she drinks, she decides to drink 1/4 of what she normally drinks and now drinks 40 ounces of coffee a week. What is the capacity of her thermos in ounces? Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
16
Colston's teacher has a thermos that she fills with coffee and 1/2 cup of milk. She does this twice a day for a five-day school week. After learning how much coffee she drinks, she decides to drink 1/4 of what she normally drinks and now drinks 40 ounces of coffee a week. What is the capacity of her thermos in ounces?
test