It costs 900 yuan to buy 8 tables and 12 chairs. It is known that the price of 3 chairs is the same as that of 1 table. How much is each table?
买8张桌子和12把椅子共用去900元，已知3把椅子和1张桌子的价钱同样多．每张桌子多少元？
<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">8 + 4</gadget>
<output>12</output>

<gadget id="calculator">900 / 12</gadget>
<output>75</output>

<result>75</result>