Vehicles A and B transport a batch of coal together. When the coal is finished, vehicle A has transported 25% of the total and 9 tons more than that of vehicle B, and the tonnage transported by vehicle B is equivalent to 50% of that of vehicle A. How many tons of coal are there in total?
甲、乙两车共运一批煤，运完时，甲车运了总数的25%多9吨，乙车运的吨数相当于甲车的50%．这批煤共有多少吨？
<gadget id="calculator">0.75 - 0.125</gadget>
<output>0.625</output>

<gadget id="calculator">13.5 / 0.625</gadget>
<output>21.6</output>

<result>21.6</result>