The school buys 2 tables and 3 chairs and pays 450 yuan in total. The price of each table is three times the price of each chair. How much is each table?
学校买2张桌子和3把椅子，共付450元，每张桌子的价钱是每把椅子价钱的3倍，每张桌子多少钱？
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">6 + 3</gadget>
<output>9</output>

<gadget id="calculator">450 / 9</gadget>
<output>50</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<result>150</result>