There was a pile of bricks at a construction site, but after (3/10) was used up, another 340 bricks were brought in. At this time, the total number of bricks was 12.5% more than the original one. How many bricks were there originally?
某工地原有一堆砖，用去(3/10)后，又运来340块，这时砖的总数比原来多12.5%，原来有多少块砖？
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">1 + 0.125</gadget>
<output>1.125</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">1.125 - (7/10)</gadget>
<output>0.425</output>

<gadget id="calculator">340 / 0.425</gadget>
<output>800</output>

<result>800</result>