and B have two bags of rice. Bag A contains 35 kg. If 15 kg is taken out from bag B and poured into bag A, the ratio of the two bags of rice in A and B is 5:7. How many kilograms of rice did Bag B originally contain?
甲乙两袋大米，甲袋有35千克，如果从乙袋取出15千克倒入甲袋，这时甲乙两袋大米的比是5：7．乙袋原来有大米多少千克？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(5/7) * 15</gadget>
<output>75/7 = around 10.714286</output>

<gadget id="calculator">50 + (75/7)</gadget>
<output>425/7 = around 60.714286</output>

<gadget id="calculator">(425/7) / (5/7)</gadget>
<output>85</output>

<result>85</result>