A liquid medicine tank of a knapsack sprayer is a cuboid with a length of 3.5dm, a width of 3dm and a depth of 5dm. If 700mL of liquid medicine is sprayed per minute, how many minutes does it take to spray a full tank of liquid medicine?
一种背负式喷雾器的药液箱是就个长3.5dm，宽3dm，深5dm的长方体．如果每分钟喷出药液700mL，喷完整箱药液需要多少分钟？
<gadget id="calculator">1_000 / 700</gadget>
<output>10/7 = around 1.428571</output>

<gadget id="calculator">3.5 * 3 * 5 * 1 * (10/7)</gadget>
<output>75</output>

<result>75</result>