Mr. Wang is a manager of an enterprise. According to statistics, the ratio of Mr. Wang's office days to the number of days out for meetings in June is 5:1. How many more days did Mr. Wang work than he held meetings in June? (Based on 30 days)
王先生是某企业经理，据统计，王先生六月份办公天数与外出开会天数的比是5：1．王先生六月份办公天数比开会天数多多少天？(按30天计算)
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(5/6) - (1/6)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">30 * (2/3)</gadget>
<output>20</output>

<result>20</result>