The price ratio of a suit, clothes and trousers is 8:5, and the trousers are 120 yuan less than the clothes. How much does it cost to buy this suit?
一套西装、衣服和裤子的价格比8：5，裤子比衣服少120元，买这套西装要用多少钱？
<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">8 + 5</gadget>
<output>13</output>

<gadget id="calculator">40 * 13</gadget>
<output>520</output>

<result>520</result>