Someone bought a total of 21.6 yuan of sugar. If it is 0.1 yuan cheaper per kilogram, he can buy 3 kilograms more with the same money. How many kilograms of sugar did he actually buy?
某人买的糖共花了21.6元，若每千克便宜0.1元，他就可以用同样的钱多买了3千克．他实际买了多少千克白糖．
<gadget id="calculator">21.6 / 0.9</gadget>
<output>24</output>

<result>24</result>