The price of a pair of trousers is 50 yuan, and the price of a jacket is twice that of a pair of trousers. How much does it cost to buy a set of such clothes?
一条裤子的价格是50元，一件上衣的价格是一条裤子的2倍，买一套这样的衣服共用多少元钱？
<gadget id="calculator">50 * 2</gadget>
<output>100</output>

<gadget id="calculator">100 + 50</gadget>
<output>150</output>

<result>150</result>