In a subtraction formula, the minuend is 100, the ratio of the difference to the subtrahend is 3:2, what is the difference.
在一道减法算式中，被减数是100，差与减数的比是3：2，差是多少．
<gadget id="calculator">100 / 5</gadget>
<output>20</output>

<gadget id="calculator">3 * 20</gadget>
<output>60</output>

<result>60</result>