A total of 90 meters of cloth were sold in the store in 3 days, twice as much on the second day as on the first day, and three times as much on the third day as on the second day. How much rice cloth was sold on the third day?
商店里3天共卖出90米布，第二天卖出的是第一天的2倍，第三天卖出的是第二天的3倍．第三天卖出多少米布．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">2 + 6 + 1</gadget>
<output>9</output>

<gadget id="calculator">90 / 9</gadget>
<output>10</output>

<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<result>60</result>