
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
A farmer decides to split his herd of cows among his four sons. The first son receives $\frac{1}{3}$ of the herd, the second son $\frac{1}{6}$ of the herd, and the third son $\frac{3}{10}$ of the herd. After these distributions, 10 cows are to be given to the village. The remaining cows are given to the fourth son, who receives 9 cows. Determine how many cows were there initially in the herd.
A) 85 cows
B) 95 cows
C) 105 cows
D) 115 cows

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