Tiffany runs 2 blocks per minute because 6 / 3 = <<6/3=2>>2

Moses runs 1.5 blocks per minute because 12 / 8 = <<12/8=1.5>>1.5

The runner with the highest average speed is Tiffany because 2 > 1.5

# Answer

2
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Moses and Tiffany want to see who is faster. But instead of a race, they just start running down the block. Tiffany runs 6 blocks in 3 minutes. Moses runs 12 blocks in 8 minutes. What is the speed (defined as blocks per minute) of the runner with the higher average speed?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2
Moses and Tiffany want to see who is faster. But instead of a race, they just start running down the block. Tiffany runs 6 blocks in 3 minutes. Moses runs 12 blocks in 8 minutes. What is the speed (defined as blocks per minute) of the runner with the higher average speed?
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