There is a batch of chemical fertilizers in the warehouse. After being shipped out (1/4), another 30 tons are transported in. At this time, the amount of chemical fertilizers in the warehouse is 6 tons less than before. How many tons of fertilizers are there in the warehouse?
仓库有一批化肥，运出(1/4)后，又运进30吨，这时仓库里的化肥比原来还少6吨，仓库原有化肥多少吨？
<gadget id="calculator">30 + 6</gadget>
<output>36</output>

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

<gadget id="calculator">36 / (1/4)</gadget>
<output>144</output>

<result>144</result>