The warehouse of a certain textile factory can store the amount of cotton used by the whole factory for 45 days. Now the warehouse is out of stock. If one car is used to transport it, in addition to supplying the daily production of the whole factory, the warehouse can be filled in 5 days; if two horse-drawn carriages are used For shipment, in addition to supplying daily production, the warehouse can be filled on the 9th. If 1 car and 2 horse-drawn carts are used to transport at the same time, in addition to supplying production, how many days can the warehouse be filled?
某纺织厂仓库，可储存全厂45日的用棉量，现在仓库无货，如用一辆汽车来运，除供应每天全厂生产外，5天可将仓库装满；如用2辆马车来运，除供应每天生产外，9日可将仓库装满．如果用1辆汽车和2辆马车同时运，那么除供应生产外，几天可将仓库装满？
<gadget id="calculator">45 + 5</gadget>
<output>50</output>

<gadget id="calculator">50 / 5</gadget>
<output>10</output>

<gadget id="calculator">45 + 9</gadget>
<output>54</output>

<gadget id="calculator">54 / 9</gadget>
<output>6</output>

<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">10 + 5</gadget>
<output>15</output>

<gadget id="calculator">45 / 15</gadget>
<output>3</output>

<result>3</result>