set of clothes is sold at the original price, and the profit is 10%. If the purchase price is reduced by 10% and sold at a profit rate of 20%, then it will be sold for 25 yuan less. How much is the original price of this suit.
一套服装按原价卖出，利润是10%．如果进价降低10%，以20%的利润率卖出，那么就将少卖25元．这套服装原价是多少元．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">25 * (1/10)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">25 + (5/2)</gadget>
<output>55/2 = around 27.5</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/10) * (1/5)</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">(1/10) - 1 - (1/5)</gadget>
<output>-11/10 = around -1.1</output>

<gadget id="calculator">(1/10) + (1/50) + 1 + (-11/10)</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">(55/2) / (1/50)</gadget>
<output>1_375</output>

<result>1_375</result>