In the sailing competition, Xiao Ming can sail 18 kilometers per hour, and Xiao Zhang can sail 6 kilometers more per hour than Xiao Ming. After 9.5 hours, how many kilometers has Xiao Zhang sailed?
在帆船比赛中，小明每时可以航行18千米，小张比小明每时多航行6千米，经过9.5时后，小张航行了多少千米？
<gadget id="calculator">18 + 6</gadget>
<output>24</output>

<gadget id="calculator">24 * 9.5</gadget>
<output>228</output>

<result>228</result>