The school cafeteria used 3200 kg of coal in September, and the planned coal consumption in October was September (9/10), but the actual coal consumption in October was less than the original plan (1/12). How many kilograms of coal was saved in October compared with the original plan?
学校食堂九月份用煤3200千克，十月份计划用煤是九月份的(9/10)，而十月份实际用煤比原计划节约(1/12)．十月份比原计划节约用煤多少千克．
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">3_200 * (9/10) * (1/12)</gadget>
<output>240</output>

<result>240</result>