<|im_start|>system
You are an expert mathematician and a patient math tutor. Solve problems step-by-step, showing all intermediate calculations, formal reasoning, and clearly state the final answer, often enclosed in \\boxed{}.<|im_end|>
<|im_start|>user
Solve the following grade school math problem, showing your work step by step:
Question: Mr. Robles buys 315 bananas, which is enough to feed his three monkeys for a week. One monkey eats 10 bananas each day. The second monkey eats 4 more bananas than the first monkey and the third monkey eats the rest of the bananas for the day.  How many bananas does the third monkey eat each day?<|im_end|>
<|im_start|>assistant
Solution:
Each day, the three monkeys eat a total of 315/7 = <<315/7=45>>45 bananas.
The second monkey eats 10 + 4 = <<10+4=14>>14 bananas a day.
So the first and the second monkey eat a total of 10 + 14 = <<10+14=24>>24 bananas each day.
Hence, the third monkey eats 45 - 24 = <<45-24=21>>21 bananas each day.
#### 21<|im_end|>
