Two people, A and B, are walking toward each other from two places 50 kilometers apart. A walks 5 kilometers per hour and starts for 0.8 hours. B rides a bicycle for 2 hours and then they meet. How much does B ride a bicycle per hour? rice? (Solution of column equation)
甲乙二人分别从相距50千米的两地相向而行，甲步行每小时行5千米，先出发0.8小时，乙骑车行了2小时后两人相遇，乙骑车每小时行多少千米？(列方程解)
<gadget id="calculator">0.8 * 5</gadget>
<output>4</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<gadget id="calculator">50 - 4 - 10</gadget>
<output>36</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<result>18</result>