It takes 10 minutes for Xiao Wang to type a manuscript alone, 15 minutes for Xiao Li to type alone, and 20 minutes for Xiao Zhao to type alone. Now the three play together, and Xiao Wang takes a rest due to illness in the middle. Minutes, how many minutes did Xiao Wang rest?
打一份稿件，小王单独打要10分钟，小李单独打要15分钟，小赵单独打要20分钟，现在三人合打，中途小王因病休息，这样打完稿件一共用了6分钟，问小王休息了几分钟？
<gadget id="calculator">13 / 60</gadget>
<output>13/60 = around 0.216667</output>

<gadget id="calculator">6 * (13/60)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">(13/10) - 1</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">7 / 60</gadget>
<output>7/60 = around 0.116667</output>

<gadget id="calculator">(13/60) - (7/60)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(3/10) / (1/10)</gadget>
<output>3</output>

<result>3</result>