A water tower stores a certain amount of water. During the day, 24% of the stored water is used, and 60 tons of water are injected at night. The result is more than the original water storage (4/25). How many tons of water did the water tower originally store?
一只水塔蓄有一定量的水，白天用去所蓄水的24%，夜里再注入60吨水后，结果比原来的蓄水多了(4/25)，这只水塔原来蓄水多少吨？
<gadget id="calculator">4 / 25</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">24 / 100</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">1 - (6/25)</gadget>
<output>19/25 = around 0.76</output>

<gadget id="calculator">(4/25) - (19/25)</gadget>
<output>-3/5 = around -0.6</output>

<gadget id="calculator">1 + (-3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">60 / (2/5)</gadget>
<output>150</output>

<result>150</result>