A and B contract a project and get a total salary of 1120 yuan. It is known that A has worked for 10 days and B has worked for 13 days, and it is known that A’s salary for 4 days is 40 yuan more than B’s salary for 5 days. How much is B’s salary?
甲、乙两人承包一项工程，共得工资1120元．已知甲工作了10天，乙工作了13天，又知甲4天的工资比乙5天的工资多40元，求乙分得工资多少元？
<gadget id="calculator">1_120 / 10</gadget>
<output>112</output>

<gadget id="calculator">112 * 4</gadget>
<output>448</output>

<gadget id="calculator">448 - 40</gadget>
<output>408</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 4</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">(1/13) * 5</gadget>
<output>5/13 = around 0.384615</output>

<gadget id="calculator">(2/5) + (5/13)</gadget>
<output>51/65 = around 0.784615</output>

<gadget id="calculator">408 / (51/65)</gadget>
<output>520</output>

<result>520</result>