A sandwich and a pack of juice cost $0.3 + $0.2 = $<<0.3+0.2=0.50>>0.50.

With Lyle's $2.50, he can buy $2.50/$0.50 = <<2.5/0.5=5>>5 sets of sandwiches and juice.

Therefore, 5 - 1 = <<5-1=4>>4 of his friends can have a sandwich and a pack of juice since the other 1 set is for Lyle himself.

# Answer

4
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Lyle wants to buy himself and his friends a sandwich and a pack of juice. A sandwich costs $0.30 while a pack of juice costs $0.2. If Lyle has $2.50, how many of his friends can have a sandwich and a pack of juice?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
4
Lyle wants to buy himself and his friends a sandwich and a pack of juice. A sandwich costs $0.30 while a pack of juice costs $0.2. If Lyle has $2.50, how many of his friends can have a sandwich and a pack of juice?
train