Xiaoming and Xiaoxiao start from A and B respectively, Xiaoming starts first, and Xiaoxiao starts after 5 minutes. After another 10 minutes, the two meet, and when they meet, they walk the same distance, how many times the speed of Xiao Ming is Xiao Ming's speed.
小明和笑笑分别从A，B两地相向出发，小明先出发，5分后笑笑出发．又过10分后两人相遇，相遇时两人走的距离相同，则笑笑速度是小明速度的多少倍．
<gadget id="calculator">5 + 10</gadget>
<output>15</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1 / 10 / (1/15)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>