Two baskets of oranges, the first basket contains 70 kg, 22 kg are taken out of it, and (3/7) are taken out from the second basket, the remaining oranges in the first basket are twice as much as in the second basket. How many kilograms did the second basket originally weigh?
两筐桔子，第一筐有70千克，从中取出22千克，又从第二筐中取出(3/7)，剩下的桔子第一筐是第二筐的2倍．第二筐原来有多少千克？
<gadget id="calculator">70 - 22</gadget>
<output>48</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">48 / 2 / (4/7)</gadget>
<output>42</output>

<result>42</result>