There are 8/2 = <<8/2=4>>4 sets of two blocks that Justin can run.

Thus, he can run home for 4 x 1.5 = <<4*1.5=6>>6 minutes.

# Answer

6
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Justin can run 2 blocks in 1.5 minutes. If he is 8 blocks from home, in how many minutes can he run home?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
6
Justin can run 2 blocks in 1.5 minutes. If he is 8 blocks from home, in how many minutes can he run home?
train