If the rent is half what she spends on food and travel expenses, she spends 1200*2 = $<<1200*2=2400>>2400 on food and travel costs.

When her friend moved in and shared the rent costs with her, she started paying 1/2*1200 = $<<1200/2=600>>600 in rent costs.

Her total monthly expenses is now 600+2400 = $<<600+2400=3000>>3000.

When she deducts her monthly expenses from her salary, she has $5000-$3000 = $<<5000-3000=2000>>2000 remaining.

# Answer

2000
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Kathryn moved to a new city for the new job she had landed two weeks ago. Her rent was $1200, 1/2 of what she spent on food and travel expenses in a month. Luckily, she found a new friend Shelby, who moved in with her to share the rent. If her salary was $5000 per month, how much money remained after her expenses?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2000
Kathryn moved to a new city for the new job she had landed two weeks ago. Her rent was $1200, 1/2 of what she spent on food and travel expenses in a month. Luckily, she found a new friend Shelby, who moved in with her to share the rent. If her salary was $5000 per month, how much money remained after her expenses?
train