There is a granary. Firstly, 20 tons more than 25% of the total grain are transported away, and then 180 tons are transported in. At this time, the grain stored in the granary has increased (3/20). How many tons of grain are stored in the granary now?
有一个粮仓，先把粮食总数的25%还多20吨运走，然后又运进180吨，这时粮仓存粮比原来增加了(3/20)．粮仓现在存粮多少吨？
<gadget id="calculator">180 - 20</gadget>
<output>160</output>

<gadget id="calculator">3 / 20</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/20) - (3/4)</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">160 / (2/5)</gadget>
<output>400</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">400 * (23/20)</gadget>
<output>460</output>

<result>460</result>