The weight of 1 pineapple is equal to the weight of 3 peaches plus 4 bananas, which is also equal to the weight of 8 bananas. Then the weight of 3 pineapples is equal to the weight of how many peaches.
1个菠萝的重量等于3个桃加4根香蕉的重量，又等于8根香蕉的重量．那么3个菠萝的重量等于多少个桃的重量．
<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">2 * 3 * 3</gadget>
<output>18</output>

<result>18</result>