It takes a person 10 hours to travel from A to B. Because there are 3 kilometers of uneven roads on the way, the driving speed is reduced to (3/4), so it is 12 minutes late, what is the distance in kilometers from A to B?
某人从甲地到乙需要10小时到达．因途中有3千米的不平路，行驶速度减为(3/4)，所以迟到12分钟，甲地到乙地距离是多少千米．
<gadget id="calculator">3 / 0.6</gadget>
<output>5</output>

<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<result>50</result>