There are two baskets of apples with the same weight in the fruit shop. If the first basket sells 12 kilograms and the second basket sells 18 kilograms, then the remaining apples in the first basket are exactly 1.5 times the remaining apples in the second basket. Do you know how many kilograms each basket of apples originally weighed?
水果店有同样重的两筐苹果，如果第一筐卖出12千克，第二筐卖出18千克，那么第一筐中剩下的恰好是第二筐剩下的1.5倍．你知道原来每筐苹果各重多少千克吗？
<gadget id="calculator">18 - 12</gadget>
<output>6</output>

<gadget id="calculator">1.5 - 1</gadget>
<output>0.5</output>

<gadget id="calculator">6 / 0.5</gadget>
<output>12</output>

<gadget id="calculator">12 + 18</gadget>
<output>30</output>

<result>30</result>