It takes 56 days for team A to complete a project, which is 4 days less than 1.5 times the time required for team B to complete the project. How many days does it take for team B to complete the project? (column equation solution)
一项工程，甲队完成需要56天，比乙队完成需要天数的1.5倍少4天，乙队完成这项工程需要多少天？(列方程解答)
<gadget id="calculator">56 + 4</gadget>
<output>60</output>

<gadget id="calculator">60 / 1.5</gadget>
<output>40</output>

<result>40</result>