piece of iron is placed in a cuboid glass tank with a length of 5 decimeters, a width of 3 decimeters, and a height of 2.5 decimeters. The weight of the iron piece is 11.7 kg. After the iron block is completely submerged in the water, how many centimeters will the water level rise if no water overflows? (One cubic decimeter of iron weighs 7.8 kilograms)
在一个长是5分米、宽是3分米、高是2.5分米的长方体玻璃水缸中放入一块铁块，铁块的重量是11.7千克．等铁块完全浸入水中后，无水溢出，水面上升多少厘米？(每立方分米铁块重7.8千克)
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">11.7 / 7.8 / 15</gadget>
<output>0.1</output>

<gadget id="calculator">0.1 * 10</gadget>
<output>1</output>

<result>1</result>