A batch of coal, after transporting 40 tons, the remaining 16 tons less than the original 85%. How many tons was this batch of coal originally?
一批煤，运走了40吨后，余下的比原来的85%少16吨．这批煤原来多少吨？
<gadget id="calculator">40 - 16</gadget>
<output>24</output>

<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1 - (17/20)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">24 / (3/20)</gadget>
<output>160</output>

<result>160</result>