A truck transports a batch of coal, 25% of the total on the first day, and 28% of the total on the second day. It is known that 6 tons are transported less on the first day than on the second day. How many tons are there in total in this batch of coal?
一辆货车运一批煤，第一天运了总数的25%，第二天运了总数的28%，已知第一天比第二天少运6吨，这批煤共有多少吨？
<gadget id="calculator">28 / 100</gadget>
<output>7/25 = around 0.28</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(7/25) - (1/4)</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">6 / (3/100)</gadget>
<output>200</output>

<result>200</result>