Mom bought a pair of trousers and 6 pairs of socks for a total of 128 yuan, a pair of trousers for 98 yuan, how much is a pair of socks?
妈妈买一条裤子和6双袜子一共花了128元，一条裤子98元，一双袜子多少元？
<gadget id="calculator">128 - 98</gadget>
<output>30</output>

<gadget id="calculator">30 / 6</gadget>
<output>5</output>

<result>5</result>