
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
An initial set of 60 numbers has an arithmetic mean of 50. Four specific numbers: 60, 65, 70, and 40 are removed from this set. Calculate the arithmetic mean of the remaining numbers.
A) 49.38
B) 50.00
C) 48.95
D) 49.50

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