Xiao Liang walked 8 kilometers to her grandmother's house in 2 hours. According to this calculation, it will take 3 hours to go to her grandmother's house. How many kilometers away is her home from her grandmother's house?
小亮去外婆家2小时走了8千米，照这样计算，去外婆家还要3小时，她家离外婆家多少千米？
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">12 + 8</gadget>
<output>20</output>

<result>20</result>