The part of a utility pole buried in the soil is 1.2 meters, and the part exposed to the ground accounts for 90% of the total length. How many meters is the utility pole?
一根电线杆埋入土中的部分是1.2米，露出地面部分占全长的90%，这根电线杆有多少米．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1.2 / (1/10)</gadget>
<output>12</output>

<result>12</result>