Xiaoming’s phone bill in September is 24 yuan, which is equivalent to that in August (June 7). The phone bill in July is twice that of August. How much is the phone bill in July?
小明家九月份电话费24元，相当于八月份的(6/7)，七月份电话费是八月份的2倍，七月份电话费多少元？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">24 / (6/7)</gadget>
<output>28</output>

<gadget id="calculator">28 * 2</gadget>
<output>56</output>

<result>56</result>