The cafeteria bought a pot of oil, a total of 5 kg. The ratio of the oil used on the first day to the second day was 4:3. On the third day, 1 kg more was used than on the second day, which happened to be all used up. How many kilograms of oil is used in the canteen on the third day?
食堂买进一壶油，共5千克，第一天和第二天所用的油的比为4：3，第三天比第二天多用了1千克，正好全部用完．食堂第三天用油多少千克？
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">4 + 3 + 3</gadget>
<output>10</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">4 * (3/10)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) + 1</gadget>
<output>11/5 = around 2.2</output>

<result>11/5 = around 2.2</result>