rectangular parallelepiped container filled with water has a base length of 1 decimeter. After a potato of 150 cubic centimeters is submerged in water, the water level rises by 2 cm. What is the width of the bottom of this rectangular parallelepiped container in centimeters?
一个盛有水的长方体容器，底面长1分米，将一块150立方厘米的土豆浸没在水中后，水面升高了2厘米，请问这个长方体容器底面宽是多少厘米？
<gadget id="calculator">1 * 10 * 2</gadget>
<output>20</output>

<gadget id="calculator">150 / 20</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>