The hourly Internet fee is 2.40 yuan. Xiao Ming’s Internet access fee in the school computer room last week was 42 yuan. Do the math, how long does Xiao Ming spend on the Internet in the school computer room on average every day?
每小时上网费是2.40元．小明上周在学校机房的上网费是42元，算一算，小明上周在学校机房平均每天上网多长时间？
<gadget id="calculator">42 / 2.4 / 7</gadget>
<output>2.5</output>

<result>2.5</result>