
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
Larry can swim from Harvard to MIT (with the current of the Charles River) in  $40$  minutes, or back (against the current) in  $45$  minutes. How long does it take him to row from Harvard to MIT, if he rows the return trip in  $15$  minutes? (Assume that the speed of the current and Larry’s swimming and rowing speeds relative to the current are all constant.) Express your answer in the format mm:ss.

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