Aunt Zhang’s house used 65 kilowatt-hours of electricity last month, and the electricity bill was 39 yuan. Uncle Wang’s electricity bill last month was 27 yuan. How much electricity did his house use last month? (Solve with ratio)
张阿姨家上个月用电65度，电费39元，王大爷家上个月的电费是27元，他家上个月用电多少度？(用比例解)
<gadget id="calculator">65 * 27</gadget>
<output>1_755</output>

<gadget id="calculator">1_755 / 39</gadget>
<output>45</output>

<result>45</result>