Theodore can craft 10 stone statues and 20 wooden statues every month. A stone statue costs $20 and a wooden statue costs $5. He also pays 10 percent of his total earnings in taxes. How much is his total earning every month? Let's think first. Chain of thought:
Theodore's total earnings from the stone statues are 10 x $20 = $200. His total earnings from wooden statues are 20 x $5 = $100. So his total earnings from the stone and wooden statue are $200 + $100 = $300. The amount he pays for the tax is $300 x 10 / 100 = $30. Therefore his total monthly earnings are $300 - $30 = $270.
Therefore, the answer is 270.