The product of a number multiplied by 0.8 is 7 less than 45 0.6, what is this number?
一个数乘0.8的积比45个0.6少7，这个数是多少？
<gadget id="calculator">0.6 * 45</gadget>
<output>27</output>

<gadget id="calculator">27 - 7</gadget>
<output>20</output>

<gadget id="calculator">20 / 0.8</gadget>
<output>25</output>

<result>25</result>