The distance between A and B is 205 kilometers. Xiao Wang starts from A by car and plans to arrive at B in 5 hours. He travels 36 kilometers per hour in the first half of the time, how many kilometers per hour must he travel in the second half of the time in order to reach point B on time?
AB两地相距205千米，小王开汽车从A地出发，计划5小时到B地．他前一半时间每小时行36千米，为了按时到达B地，后一半时间必须每小时行多少千米？
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">36 * (5/2)</gadget>
<output>90</output>

<gadget id="calculator">205 - 90</gadget>
<output>115</output>

<gadget id="calculator">115 / (5/2)</gadget>
<output>46</output>

<result>46</result>