There are two barrels of oil. The oil in barrel A is 15 kg less than that in barrel B. Now pour (1/25) of the oil in barrel B into barrel A. At this time, barrel A has 5 kg more oil than barrel B. Originally, barrel B has How many kilograms?
有两桶油，甲桶油比乙桶油少15千克，现在把乙桶油的(1/25)倒入甲桶，这时甲桶油比乙桶油多5千克，乙桶油原来有多少千克？
<gadget id="calculator">15 + 5</gadget>
<output>20</output>

<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">(1/25) * 2</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">20 / (2/25)</gadget>
<output>250</output>

<result>250</result>