A train carriage, measured from the inside, is 10m long, 2.7m wide, and 1.5m high in coal. Each cubic meter of coal weighs 2 tons. How many tons does the coal in this carriage weigh?
一节火车车厢，从里面量，长10m，宽2.7m，装的煤高1.5m．每立方米煤重2吨．这节车厢里的煤重多少吨？
<gadget id="calculator">10 * 2.7 * 1.5 * 2</gadget>
<output>81</output>

<result>81</result>