The original number of boxes of white tiles in Huazhong Building Materials Store is 1,000 boxes more than that of flower tiles. After the white tiles are sold (1/3), the number of boxes of flower tiles is 250 boxes more than that of white tiles. How many boxes of white tiles are there in the building materials store?
华中建材商店原有白瓷砖的箱数比花瓷砖多1000箱，白瓷砖卖出(1/3)后，花瓷砖的箱数比白瓷砖多250箱，建材商店原有白瓷砖多少箱？
<gadget id="calculator">1_000 + 250</gadget>
<output>1_250</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1_250 / (1/3)</gadget>
<output>3_750</output>

<result>3_750</result>