A suit of trousers is 50 yuan, and the price of a jacket is three times that of a pair of trousers. How much does this outfit cost?
一套衣服的裤子50元，上衣的价钱是条裤子的3倍．这套服装共需要多少钱？
<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">150 + 50</gadget>
<output>200</output>

<result>200</result>