Pour 1/5 of a bottle of Coke into a cup, which is 15 cubic centimeters short of being full. If 1/4 of Coke is poured into this cup, there will be an additional 25 cubic centimeters after the cup is filled. What is the volume of this cup in cubic centimeters?
将一瓶可乐的(1/5)倒入一个杯子中，离杯子满还差15立方厘米．若将可乐的(1/4)倒入这个杯子中，装满杯子后还多25立方厘米．这个杯子的容积是多少立方厘米．
<gadget id="calculator">15 + 25</gadget>
<output>40</output>

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

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/4) - (1/5)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">40 / (1/20)</gadget>
<output>800</output>

<gadget id="calculator">800 * (1/5)</gadget>
<output>160</output>

<gadget id="calculator">160 + 15</gadget>
<output>175</output>

<result>175</result>