There are two bags of rice, A weighs 25kg, take out (1/5) from A bag and pour it into B bag, at this time, the rice in B bag is heavier than A bag (1/5). How many kilograms is the original bag of rice?
有两袋大米，甲重25kg，从甲袋中取出(1/5)倒入乙袋，这时，乙袋大米反而比甲袋重(1/5)．乙袋大米原有多少千克？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">25 * (4/5) * (6/5)</gadget>
<output>24</output>

<gadget id="calculator">25 * (1/5)</gadget>
<output>5</output>

<gadget id="calculator">24 - 5</gadget>
<output>19</output>

<result>19</result>