There is a batch of cement on the construction site, which is used up (1/4), and then transported in 250 tons. At this time, the cement on the construction site is 95% of the original amount. How many tons of cement is there on the construction site?
工地上有一批水泥，用去(1/4)，又运进250吨，这时工地上的水泥是原来的95%，工地上原有水泥多少吨？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">1 / 4</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">(19/20) - (3/4)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">250 / (1/5)</gadget>
<output>1_250</output>

<result>1_250</result>