The quotient of 2 times a number divided by 0.6 is 4.5, find this number.
一个数的2倍除以0.6的商是4.5，求这个数．
<gadget id="calculator">4.5 * 0.6</gadget>
<output>2.7</output>

<gadget id="calculator">2.7 / 2</gadget>
<output>1.35</output>

<result>1.35</result>