There is a water tower that stores a certain amount of water. During the day, 24% of the stored water was used, and after adding 54 tons of water at night, the result was 12% more than the original water storage. How many tons of water did this water tower originally store?
有只水塔蓄有一定量的水．白天用去所蓄水的24%，夜里再注入54吨水后，结果比原来的蓄水量多了12%．这只水塔原来蓄水多少吨？
<gadget id="calculator">24 / 100</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">(6/25) + (3/25)</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">54 / (9/25)</gadget>
<output>150</output>

<result>150</result>