Let J = Josh's distance

2J = Selena's distance

J + 2J = 36

3J = <<36=36>>36 miles

J = <<12=12>>12

2J = <<24=24>>24 miles

Selena ran 24 miles.

# Answer

24
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Selena and Josh were running in a race. Together they ran 36 miles. Josh ran half of the distance that Selena ran. How many miles did Selena run?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
24
Selena and Josh were running in a race. Together they ran 36 miles. Josh ran half of the distance that Selena ran. How many miles did Selena run?
train