A bridge pier is 36 meters high above the water, the underwater part accounts for 15% of the total length, and the part buried in the mud accounts for 1/4 of the total length. How many meters is the total length of the bridge pier?
一个桥墩水上部分高36米，水中部分占全长的15%，埋在泥中的部分占全长的(1/4)，求桥墩全长多少米？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (3/20) - (1/4)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">36 / (3/5)</gadget>
<output>60</output>

<result>60</result>