There are two baskets of apples, A and B, and the weight of basket A is 30 kilograms. If (1/5) is poured from basket B to basket A, the weight of the two baskets of apples is the same. How many kilograms of apples does B basket have?
有甲、乙两筐苹果，甲筐有30千克，如果从乙筐中倒出(1/5)给甲筐，则两筐苹果就一样重，乙筐苹果有多少千克．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5) - (1/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 / (3/5)</gadget>
<output>50</output>

<result>50</result>