Uncle Li went to the market to buy meat with 120 yuan. Since the price was reduced (1/5), the meat he bought was 5 kg more than the meat he bought with the same amount the day before yesterday. How many kilograms of meat did he buy the day before yesterday?
李叔叔拿120元到市场买肉，由于降价了(1/5)，所以他买到的肉比前天拿同样多的钱买到的肉多5千克，他前天买到的肉有多少千克？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">120 / 6</gadget>
<output>20</output>

<result>20</result>