
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Five runners ran a relay race. If the first runner had run twice as fast, they would have spent 5% less time. If the second runner had run twice as fast, they would have spent 10% less time. If the third runner had run twice as fast, they would have spent 12% less time. If the fourth runner had run twice as fast, they would have spent 15% less time. By what percentage less time would they have spent if the fifth runner had run twice as fast?

Present the answer in LaTex format: \boxed{Your answer}
user